@inproceedingsBetke_Sperling_Schryen_Sackmann_2024, place=Oahu, Hawaii, USA, title=A Design Theory for Spontaneous Volunteer Coordination Systems in Disaster Response, booktitle=Proceedings of the 57th Hawaii International Conference on System Science (HICSS 2024), author=Betke, Hans and Sperling, Martina and Schryen, Guido and Sackmann, Stefan, year=2024 

@articleSchryen_Sperling_2023, title=Literature Reviews in Operations Research: A New Taxonomy and a Meta Review, volume=157, number=September106269, journal=Computers &; Operations Research, author=Schryen, Guido and Sperling, Martina, year=2023 

@articleSperling_Schryen_2022, title=Decision Support for Disaster Relief: Coordinating Spontaneous Volunteers, volume=299, number=2, journal=European Journal of Operational Research (EJOR), author=Sperling, Martina and Schryen, Guido, year=2022, pages=690–705