https://www.oorlogsbronnen.nl/tijdlijn/ce907370-06ee-4ae3-a40e-caae8403dfcb
https://www.joodsmonument.nl/en/page/126620/kurt-michael-bruno-asch
https://collecties.kampwesterbork.nl/persoon/https%3A%2F%2Fkampwesterbork.nl%2Fdata%2Fperson%2F11144543
https://online-ofb.de/famreport.php?ofb=juden_nw&ID=I263301&lang=en
#dutch (since 1935; see second link below)
Kurt Michael Bruno Asch (1883 - 1942) - Genealogy (geni.com)
https://archief.amsterdam/indexen/deeds/40fd3c19-c741-4981-8ace-2ef14f2db220?person=99e87e29-0911-2bb2-e053-b784100a6a2e
