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  1. 2025
  2. Innovation management in small and medium-sized enterprises

    Deller, J. (Panel participant)

    27.10.2025

    Activity: Talk or presentationtalk or presentation in privat or public eventsTransfer

  3. Marginalized group’s psychological barriers to joining pro-environmental initiatives: Can perceived initiative inclusiveness help overcome them?

    Siem, B. (Speaker) & Jans, L. (Coauthor)

    15.09.2025

    Activity: Talk or presentationConference PresentationsResearch

  4. Exploring teachers‘ pedagogical content knowledge for teaching length estimation

    Huang, H.-M. E. (Speaker), Hoth, J. (Coauthor), Chang, W.-S. (Coauthor), Heinze, A. (Coauthor) & Ruwisch, S. (Coauthor)

    28.07.202502.08.2025

    Activity: Talk or presentationConference PresentationsResearch

  5. Marginalized minorities‘ psychological barriers to joining pro-environmental initiatives: Can perceived initiative inclusiveness help overcome them?

    Siem, B. (Speaker) & Jans, L. (Coauthor)

    17.06.2025

    Activity: Talk or presentationConference PresentationsResearch

  6. Entrepreneurs of Chaos?

    Galligo, I. (Organiser), Schüßler, E. (Organiser), Wenzel, M. (Organiser) & Hörl, E. (Organiser)

    19.05.202520.05.2025

    Activity: Participating in or organising an academic or articstic eventConferencesResearch

  7. Digi-CLIL: Virtual exchange for intercultural and sustainable learning.

    Birdman, J. (Speaker), Barron, A. (Coauthor), Çiçek, O. (Coauthor) & Schmidt, T. (Coauthor)

    24.03.202526.03.2025

    Activity: Talk or presentationConference PresentationsResearch

  8. The effects of pragmatic intervention on directive speech acts in a virtual exchange CLIL context at university level.

    Çiçek, O. (Speaker), Barron, A. (Coauthor), Schmidt, T. (Coauthor) & Birdman, J. (Coauthor)

    24.03.202526.03.2025

    Activity: Talk or presentationConference PresentationsResearch

  9. 23. Hochschultage Berufliche Bildung - HTBB 2025

    Kähler, A.-F. (Coauthor), Hantsch, R. (Coauthor), Casper, M. (Coauthor), Kiepe, K. (Coauthor), Hantke, H. (Coauthor), Hufnagl, J. (Coauthor), Heisler, D. (Coauthor), Schütt-Sayed, S. (Coauthor), Ansmann, M. (Coauthor), Kohl, M. (Coauthor), Thole, C. (Coauthor), Ciolek, S. (Coauthor), Diettrich, A. (Coauthor), Dück, F. (Coauthor), Haberzeth, E. (Coauthor), Harm, S. (Coauthor), Heitzhausen, S. (Coauthor), Hösel, F. (Coauthor), Kröhn, S. (Coauthor), Loy, S. (Coauthor), Müller, C. (Coauthor), Porath, J. (Coauthor), Pranger, J. (Coauthor), Reißland, J. (Coauthor) & Stoll, C. (Coauthor)

    18.03.202519.03.2025

    Activity: Talk or presentationPresentations (poster etc.)Transfer

  10. Fachtagung Politik: Berufsbezogene politische Bildung

    Hantke, H. (Coauthor) & Kenner, M. (Coauthor)

    17.03.202518.03.2025

    Activity: Talk or presentationPresentations (poster etc.)Transfer

  11. Researching around the Brown Box - Notes from a Critical Ethnography of Amazon’s Urbanism

    Beverungen, A. (presenter) & Voigt, M.-L. (presenter)

    14.03.2025

    Activity: Talk or presentationConference PresentationsResearch

  12. Employer Longevity Readiness Index Workshop: Session 2: How do you build a longevity readiness Index?

    Deller, J. (Speaker)

    10.02.2025

    Activity: Talk or presentationtalk or presentation in privat or public eventsResearch

  13. Requests in Nigerian and British English conversational interactions: A corpus-based approach.

    Flöck, I. (Speaker), Inya, O. (Speaker) & Barron, A. (Speaker)

    06.02.2025

    Activity: Talk or presentationConference PresentationsResearch

  14. EFL Student Teachers as Game Developers – Processes, Products and Skills

    Schmidt, T. (Speaker)

    23.01.2025

    Activity: Talk or presentationConference PresentationsResearch

  15. Kreislaufwirtschaft in der Produktion verstehen- Interaktiver Workshop

    Schulz, J. (Speaker)

    23.01.2025

    Activity: Participating in or organising an academic or articstic eventExternal workshops, courses, seminarsTransfer

  16. 2024
  17. Konsumverhalten und Lösungsansätze im Fokus der Nachhaltigkeit

    Imschloß, M. (Speaker)

    20.11.2024

    Activity: Talk or presentationtalk or presentation in privat or public eventsTransfer

  18. Keynote speech entitled: Some Control Strategies for MagLev Actuators

    Mercorelli, P. (Keynote Speaker)

    05.11.2024

    Activity: Talk or presentationtalk or presentation in privat or public eventsResearch

  19. Decolonizing Aesthetic Materials in Times of Catastrophe

    Felicitas Sabel, L. (Speaker)

    01.11.2024

    Activity: Participating in or organising an academic or articstic eventExternal workshops, courses, seminarsResearch

  20. Responding to the demand? Voters’ grievances, PRR success, and mainstream party strategies

    Engler, S. (Speaker)

    15.07.2024

    Activity: Participating in or organising an academic or articstic eventExternal workshops, courses, seminarsResearch

  21. Multiple Work Identities and Strategies of Coping in Times of Crisis: A Case Study on Cuban Musicians as Artpreneurs

    Jakob, L. (Speaker)

    25.06.2024

    Activity: Talk or presentationConference PresentationsResearch

  22. Plenary lecture eintitled: "Sliding Mode Control Strategies for Maglev Systems based on Kalman Filtering"

    Mercorelli, P. (Plenary speaker)

    22.05.2024

    Activity: Talk or presentationtalk or presentation in privat or public eventsResearch

  23. Die Gegenwart des Antikolonialismus in den künstlerischen Arbeiten von Mathieu Kleyebe Abonnenc und Bouchra Khalili

    Volz, J. (Speaker)

    26.04.2024

    Activity: Talk or presentationtalk or presentation in privat or public eventsEducation

  24. Argumentationsfiguren von Lehrer*innen zur Gestaltung von Theorie-Praxis-Verknüpfungen

    Karber, A. (Speaker) & Bobe, A. (Speaker)

    12.03.2024

    Activity: Talk or presentationConference PresentationsResearch

  25. Zwischen ‚Krisenbewältigung‘ und Diskriminierungskritik – Schulischer Wandel im Horizont aktueller Fluchtmigrationen

    Kollender, E. (presenter) & Schwendowius, D. (presenter)

    12.03.2024

    Activity: Talk or presentationConference PresentationsResearch

  26. Verschweigen, Beschwichtigen, Rechtfertigen. Zu den institutionellen Reaktionen auf die Stimme der Kinder im Kinderschutz

    Alberth, L. (Speaker)

    11.03.2024

    Activity: Talk or presentationConference PresentationsResearch

  27. Zur zeitlichen Dimension von Gerechtigkeit in der Ausgestaltung organisationaler Bildung im Elementar- und Primarbereich

    Wahne, T. (Oral presentation)

    29.02.2024

    Activity: Talk or presentationConference PresentationsResearch

  28. Evaluierung des Deutschen Museums von Meisterwerken der Naturwissenschaft und Technik (DM) in München

    Kirchberg, V. (Reviewer)

    17.01.202419.01.2024

    Activity: Other expert activitiesAcademic ConsultantResearch

  29. Quantity, Quality, Trust: Dilemmas and Strategies of Museum Documentation in the Age of AI

    Rother, L. (Speaker), Mariani, F. (Speaker) & Koss, M. (Speaker)

    17.01.2024

    Activity: Talk or presentationConference PresentationsResearch

  30. 2023
  31. Handelskongress Deutschland 2023

    Brockelmann, K. (Participant)

    14.11.202316.11.2023

    Activity: Participating in or organising an academic or articstic eventConferencesTransfer

  32. Forschungsethik in der Kindheitsforschung: Problematisierungen, Standards und Strategien

    Alberth, L. (Speaker)

    27.09.2023

    Activity: Talk or presentationConference PresentationsResearch

  33. Alter und Arbeitswelt: Potenzial 50+ (Diskussionsrunde)

    Finsel, J. (Panel participant), Hartmann, B. (Panel participant) & Reimann, A. (Panel participant)

    18.07.2023

    Activity: Talk or presentationtalk or presentation in privat or public eventsTransfer

  34. Pessimism and Optimism of the Future: the Future of the World(s) in the Strategies of Feminism and Digital Technologies

    Davydzik, V. (Speaker)

    16.06.2023

    Activity: Talk or presentationConference PresentationsResearch

  35. Praktikumsbegleitung Im Lehramtsstudium berufliche Fachrichtung Sozialpädagogik - Bestandsaufnahme, Perspektiven und Bedarfe

    Paesche, M. (Speaker), Bobe, A. (Speaker) & Bielski-Wüsthoff, P. (Speaker)

    20.03.2023

    Activity: Talk or presentationConference PresentationsResearch

  36. Herausforderungen und Entwicklungen bei der Messung schriftsprachlicher Fähigkeiten

    Neumann, A. (Speaker)

    28.02.2023

    Activity: Talk or presentationConference PresentationsResearch

  37. 2022
  38. 2. Jahreskonferenz Fokus Aufsichtsrat 2022

    Velte, P. (Moderator)

    30.11.2022

    Activity: Participating in or organising an academic or articstic eventConferencesTransfer

  39. Artifacts and frames in socio-technical anticipation: The case of responsible AI

    Minkkinen, M. (Speaker), Mäntymäki, M. (Speaker) & Zimmer, M. P. (Speaker)

    16.11.2022

    Activity: Talk or presentationConference PresentationsResearch

  40. Science, Technology and Democracy: Interactions in Change

    Saretzki, T. (Speaker)

    09.11.2022

    Activity: Talk or presentationGuest lecturesEducation

  41. Kongress - 41. Kongress der Deutschen Gesellschaft für Soziologie

    Alberth, L. (Organiser) & Osrecki , F. (Organiser)

    29.09.2022

    Activity: Participating in or organising an academic or articstic eventConferencesResearch

  42. Kongress - 41. Kongress der Deutschen Gesellschaft für Soziologie

    Alberth, L. (Organiser), Barwick, C. (Organiser) & Eisewicht, P. (Organiser)

    28.09.2022

    Activity: Participating in or organising an academic or articstic eventConferencesResearch

  43. Note-taking while Working on Mathematical Modelling Tasks

    Wienecke, L.-M. (Speaker)

    24.09.2022

    Activity: Talk or presentationConference PresentationsResearch

  44. Classical music making in artistic precarity

    Kirchberg, V. (Speaker), Barber-Kersovan, A. (Speaker) & Lutze, T. (Speaker)

    15.09.2022

    Activity: Talk or presentationConference PresentationsResearch

  45. Context-based discrimination in school

    Essien, I. (Speaker)

    15.09.2022

    Activity: Talk or presentationConference PresentationsResearch

  46. Das Anfertigen von Notizen als Lernstrategie beim mathematischen Modellieren

    Wienecke, L.-M. (Speaker)

    02.09.2022

    Activity: Talk or presentationConference PresentationsResearch

  47. Digital Capitalism meets Leberkaspeppi: Temporal Orientations in Business Models as a Source of Platform Power in Mature Industries

    Schüßler, E. (Speaker) & Maric, S. (Speaker)

    09.07.2022

    Activity: Talk or presentationConference PresentationsResearch

  48. Digital Capitalism meets Leberkaspeppi: Temporal Orientations in Business Models as a Source of Platform Power in Mature Industries

    Schüßler, E. (Speaker) & Maric, S. (Speaker)

    08.07.2022

    Activity: Talk or presentationConference PresentationsResearch

  49. Ghosting the City – Zooming in on Otherwise Publics in Virtual Worlds

    Schneider, C. (Speaker), Voigt, M.-L. (Speaker), Niewerth, C. (Speaker) & Bötel, J. (Speaker)

    03.06.2022

    Activity: Talk or presentationConference PresentationsResearch

  50. Sachverständigenkommission des BMFSFJ (External organisation)

    Sandermann, P. (Member)

    06.20222024

    Activity: MembershipAcademic councils, panels and committeesTransfer

  51. “Relying on Spontaneity”

    Kargin, F. (Speaker)

    23.05.2022

    Activity: Talk or presentationConference PresentationsResearch

  52. 2021
  53. Imagined Community VIII: My Significant Others

    Gerhardt, U. (Curator)

    29.11.202112.12.2021

    Activity: Participating in or organising an academic or articstic eventartistic eventsResearch

  54. Towards the Design of Active Pharmaceutical ingredients (APIs) mineralizing readily in the Environment

    Puhlmann, N. (Speaker)

    18.11.2021

    Activity: Talk or presentationConference PresentationsResearch

  55. Unrelating

    Wieghorst, C. (Organiser)

    18.11.202109.12.2021

    Activity: Participating in or organising an academic or articstic eventConferencesResearch

  56. Die Perspektive von Schüler*innen auf das selbstregulierte Lesen im Fach Biologie – Wie viel Strategievermittlung findet im Fach statt?

    Schmitz, A. (Coauthor) & Karstens, F. (presenter)

    08.11.2021

    Activity: Talk or presentationConference PresentationsResearch

  57. Students' concpetions about the sense of smell

    Hofer, E. (Coauthor)

    05.11.2021

    Activity: Talk or presentationConference PresentationsResearch

  58. Project-based and other activating strategies and issues of science education - PBE 2021

    Hofer, E. (Participant)

    04.11.202105.11.2021

    Activity: Participating in or organising an academic or articstic eventConferencesResearch

  59. Towards the Design of Active Pharmaceutical ingredients (APIs) mineralizing readily in the Environment

    Puhlmann, N. (Speaker)

    01.09.2021

    Activity: Talk or presentationConference PresentationsResearch

  60. Sprachbildfahrzeuge – Ähnlichkeit als modellierendes Verfahren in Robert Walsers literarischem Schreiben

    Steierwald, U. (Speaker)

    27.07.2021

    Activity: Talk or presentationConference PresentationsResearch

  61. Ästhetisch-künstlerische Auseinandersetzungen mit digitalen Medien im Schulunterricht 2021

    Claußen, J. T. (Organiser) & Przybylka, N. (Organiser)

    17.06.2021

    Activity: Participating in or organising an academic or articstic eventConferencesResearch

  62. Critical Artistic Interventions in Urban Contexts – The Intrinsic Logic or Spirit of Cities and Its Influence on Critical Artists

    Kirchberg, V. (Speaker) & Hoop, M. (Speaker)

    11.03.2021

    Activity: Talk or presentationConference PresentationsResearch

  63. Vorstellung des Later Life Workplace Index und seiner Ergebnisse für die Bundesbank

    Deller, J. (Speaker)

    11.03.2021

    Activity: Talk or presentationGuest lecturesTransfer

  64. #Instacops - Strategien und Wirkungen digitaler Polizeiarbeit auf Instagram am Beispiel der Polizei Niedersachsen

    Agoropoulos, A. (Speaker), Hundertmark, B. (Speaker), Janssen, J. (Speaker) & Louis, T. (Speaker)

    04.03.2021

    Activity: Talk or presentationConference PresentationsResearch

  65. Digitalisierung geschlechtergerecht gestalten: Gutachten für den Dritten Gleichstellungsbericht der Bundesregierung

    Gegenhuber, T. (Reviewer), Beblo, M. (Reviewer), Draude, C. (Reviewer), Höyng, S. (Reviewer), Nebe, K. (Reviewer), Richter, C. (Reviewer), Send, H. (Reviewer), Spiecker gen. Döhmann, I. (Reviewer), Teubner, T. (Reviewer), Ullrich, S. (Reviewer) & Yollu-Tok, A. (Reviewer)

    26.01.2021

    Activity: Other expert activitiesAcademic ConsultantResearch

  66. 2020
  67. Vom Ausgraben und Beerdigen der Fotografie. Memory Work und Archivkritik in den künstlerischen Arbeiten von Akram Zaatari

    John, R. (Speaker)

    30.11.2020

    Activity: Talk or presentationtalk or presentation in privat or public eventsResearch

  68. How to bridge the Distances: Strategies of Solidarity in Times of Need

    Eduardo, S. (Speaker)

    12.11.2020

    Activity: Participating in or organising an academic or articstic eventartistic eventsResearch

  69. Project-Based Education and Other Activating Strategies in Science Education 2020

    Hofer, E. (Participant)

    05.11.202006.11.2020

    Activity: Participating in or organising an academic or articstic eventConferencesResearch

  70. Teachers' beliefs about and dispositions towards Inquiry-based Learning

    Hofer, E. (presenter), Koliander, B. (Coauthor) & Puddu, S. (Coauthor)

    05.11.2020

    Activity: Talk or presentationPresentations (poster etc.)Research

  71. Data Based Control of Supply Chains

    Schmidt, M. (Speaker)

    21.10.2020

    Activity: Talk or presentationConference PresentationsResearch

  72. Combatting discrimination of migrant and refugee students: Challenges and strategies of civil society organizations in Germany and Turkey

    Kollender, E. (Speaker)

    18.04.202019.04.2020

    Activity: Talk or presentationConference PresentationsResearch

  73. Internationale Tagung Wirtschaftsinformatik - WI 2020

    Drews, P. (Organiser) & Urbach, N. (Organiser)

    09.03.202011.03.2020

    Activity: Participating in or organising an academic or articstic eventConferencesResearch

  74. Plenary speech entitled: "Development of Control Strategies for an Ice Clamping Device in Industrial Applications"

    Mercorelli, P. (Plenary speaker)

    22.02.202024.02.2020

    Activity: Talk or presentationGuest lecturesResearch

  75. 2019
  76. Strengthening Competencies in Artificial Intelligence

    Mah, D.-K. (Speaker), Bernd, M. (Speaker), Gamst, C. (Speaker) & Ionica, L. (Speaker)

    09.12.2019

    Activity: Talk or presentationConference PresentationsEducation

  77. Adito CRM Strategie-Event - 2019

    Brockelmann, K. (Speaker)

    14.11.201916.11.2019

    Activity: Participating in or organising an academic or articstic eventExternal workshops, courses, seminarsTransfer

  78. Developing learning environments for independent work

    Hofer, E. (Speaker)

    08.11.2019

    Activity: Talk or presentationConference PresentationsResearch

  79. Project-based Education and other activating strategies in science education 2019

    Hofer, E. (Participant)

    07.11.201908.11.2019

    Activity: Participating in or organising an academic or articstic eventConferencesResearch

  80. Profilstudium schulische Inklusion – Eine Spezialisierungsmöglichkeit für angehende Lehrkräfte an der Leuphana Universität Lüneburg

    Troll, B. (Speaker), Kuhl, P. (Speaker) & Süßenbach, J. (Coauthor)

    19.09.2019

    Activity: Talk or presentationConference PresentationsEducation

  81. Criteria and Strategies of Student Teachers to Deal with Teaching Material from the Internet about Refugees

    Kater-Wettstädt, L. (Speaker)

    04.09.2019

    Activity: Talk or presentationConference PresentationsResearch

  82. Identitätspolitik als Strategie der Entprivilegierung? Eine politiktheoretische Einordnung

    Séville, A. (Speaker)

    09.2019

    Activity: Talk or presentationGuest lecturesTransfer

  83. Between Disorder and Control – Cybernetic Chronotopes in Crisis

    Warnsholdt, C. L. (Speaker)

    08.06.2019

    Activity: Talk or presentationtalk or presentation in privat or public eventsResearch

  84. Aber wie können wir es machen? - eine Strategie zur Implementierung von Forschendem Lernen in den Regelunterricht

    Hofer, E. (Speaker)

    26.04.2019

    Activity: Talk or presentationConference PresentationsTransfer

  85. Waldgarten Reallabor: nachhaltige und multi-funktionale Flächennutzung im urbanen Raum

    Albrecht, S. (Speaker) & Friedel, A. (Speaker)

    09.04.201909.07.2019

    Activity: Participating in or organising an academic or articstic eventExternal workshops, courses, seminarsEducation

  86. Jederzeit und überall lernen? Über Grenzen und Entgrenzung sozialpädagogischer Bildungswege durch digitale Lehr-Lern-Formen

    Eylert-Schwarz, A. (Speaker) & Rahdes, S. P. (Speaker)

    12.03.2019

    Activity: Talk or presentationConference PresentationsTransfer

  87. 14. Internationale Tagung Wirtschaftsinformatik - WI 2019

    Drews, P. (Organiser)

    24.02.201927.02.2019

    Activity: Participating in or organising an academic or articstic eventConferencesResearch

  88. 27. Onkologisch-Pharmazeutischer Fachkongress NZW

    Kümmerer, K. (Speaker)

    25.01.2019

    Activity: Talk or presentationConference PresentationsResearch

  89. How liberal democracies survive. Strategies and dilemmas of anti-populism

    Séville, A. (Speaker)

    2019

    Activity: Talk or presentationGuest lecturesResearch

  90. 2018
  91. Klimaschutz und die rechtliche Zulässigkeit der Stilllegung von Braun- und Steinkohlekraftwerken

    Schomerus, C.-T. (Reviewer) & Franßen, G. (Reviewer)

    13.12.2018

    Activity: Other expert activitiesAcademic ConsultantTransfer

  92. Syntaxbasierte Großschreibung von Anfang an?! Eine Längsschnittuntersuchung in offenen Eingangsstufen (Klassen 1 und 2)

    Weinhold, S. (Speaker), Johannsen, G. (Speaker), Junge, N. (Speaker), Fischer, J. (Speaker) & Hase, A. K. (Speaker)

    30.11.2018

    Activity: Talk or presentationConference PresentationsResearch

  93. “Underground” Clubs as Urban Policies? Music Venues, the City and the Meaning of Symbolic Value.

    Kuchar, R. (Speaker)

    23.11.201825.11.2018

    Activity: Talk or presentationConference PresentationsResearch

  94. O.K. Werckmeister und die kritische Kunstwissenschaft

    Schneider, T. (Speaker)

    25.10.2018

    Activity: Talk or presentationConference PresentationsResearch

  95. Underground Clubs in Transition. Scene based Music Venues and Spatial Strategies in Hamburg St. Pauli.

    Kuchar, R. (Speaker)

    04.09.201807.09.2018

    Activity: Talk or presentationConference PresentationsResearch

  96. Observer Strategies for Virtual Sensing of Embroidered Metal-Polymer Heater Structure

    Schimmack, M. (Speaker), Pöschke, F. (Coauthor), Schulte, H. (Coauthor), Mercorelli, P. (Coauthor) & Mercorelli, P. (Speaker)

    30.08.2018

    Activity: Talk or presentationConference PresentationsResearch

  97. Where do we look next? First steps towards a scan path theory.

    Höger, R. (Coauthor) & Schlorf, M. (Coauthor)

    20.08.201824.08.2018

    Activity: Talk or presentationConference PresentationsResearch

  98. Placemaking today: integrating place-oriented thinking into cultural policy frameworks

    Kirchberg, V. (Panel participant), Silver, D. (presenter), Hughes, J. (Panel participant), Mackinnon, E. (Panel participant), Raza, A. (Panel participant) & Kletkotko, M. (Panel participant)

    17.07.2018

    Activity: Talk or presentationConference PresentationsResearch

  99. Female Bodybuilding – Practices of Transgression or Reproduction of Femininity?

    Wuggenig, U. (Speaker)

    10.07.2018

    Activity: Talk or presentationConference PresentationsResearch

  100. Changing identities of DIY based music venues? Clubs between scene - traditionalism, assimilation and ‘subcultural institutionalization’

    Kuchar, R. (Speaker)

    04.07.201807.07.2018

    Activity: Talk or presentationConference PresentationsResearch

  101. 47th Annual Conference of European Marketing Academy - EMAC 2018

    Batt, V. (Participant) & Bekmeier-Feuerhahn, S. (Participant)

    30.05.201801.06.2018

    Activity: Participating in or organising an academic or articstic eventConferencesResearch

  102. Deeper Insights into Different Consumer Perceptions of CSR Communication: Germany vs. United States vs. China

    Batt, V. (Speaker) & Bekmeier-Feuerhahn, S. (Speaker)

    29.05.2018

    Activity: Talk or presentationConference PresentationsResearch

  103. Wandlungsfähige, menschzentrierte Strukturen in Fabriken und Netzwerken der Industrie 4.0

    Lanza, P. D.-I. G. (Other), Nyhuis, P.D.-I. P. (Other), Fisel, J. (Other), Jacob, A. (Other), Nielsen, L. (Other), Schmidt, M. (Other) & Stricker, D.-I. N. (Other)

    26.04.2018

    Activity: Other expert activitiesAcademic ConsultantResearch

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