| AMC | Amsterdam Medical Center (AMC), Brain Institute (The Netherlands) |
| ASA | Amsterdam City Archive (The Netherlands) |
| AUL | Amsterdam University Library, Special Collections: Pieter Meertens Archive (The Netherlands) |
| CEGESOMA | Studie- en Documentatiecentrum Oorlog en Hedendaagse Maatschapij, Brussels (Belgium) |
| DW | Hans Derks, Deutsche Westforschung (2001) |
| GUA | Gent University Archive, Gent (Belgium) |
| HA | Hans Derks, Jew, Nomad or Pariah. Studies on Hannah Arendt’s Choice (2004) |
| HOP | Idem, History of the Opium Problem (2012) |
| HVW | Handbuch der völkischen Wissenschaften, hrg. Ingo Haar, Michael Fahlbusch (München: Saur, 2008/2017) |
| R(N)IOD | Rijks (Netherlands) Institute for War Documentation, Amsterdam. |
| SLMO | Hans Derks, Stad en Land, Markt en Oikos (1986) |
| UUL | Utrecht University Library, Special Collections: Pieter Geyl Archive; Utrecht (The Netherlands) |
| WAA | Westfälisches Archivamt – Archiv LVVL, Münster (Germany) |