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2. dass sich so was wie 2015 nicht mehr wiederholt“. Die Welt;Müssen alles daransetzen,2019
3. The UCL–Lancet Commission on Migration and Health: the health of a world on the move;Abubakar;Lancet,2018
4. Asylum statistics. Statistics explained;Eurostat,2019
5. Figures at a glance. Statistical yearbooks;UNHCR (United Nations High Commissioner for Refugees),2019