Silberzahn, RaphaelRaphaelSilberzahnFriesl, MartinMartinFriesl0000-0002-2189-51872019-11-152019-11-152009https://fis.uni-bamberg.de/handle/uniba/46726engHow to become global? Categorization of chance projects and their contribution to a global change initiativearticle