Bergmann, Jonas Potsdam Institute for Climate Impact Research;
Martin, Susan F. External Organizations;
https://publications.iom.int/system/files/pdf/shifting-forms.pdf (出版社版)
Bergmann, J., & Martin, S. F. (2020). Covid-19 and the transformation of migration and mobility globally – Shifting forms of mobility related to COVID-19. Geneva: International Organization for Migration.