https://www.joodsmonument.nl/nl/page/150297/alexander-norden
https://www.oorlogsbronnen.nl/tijdlijn/Alexander+Norden/57/130347934
https://collecties.kampwesterbork.nl/persoon/https%3A%2F%2Fkampwesterbork.nl%2Fdata%2Fperson%2F13355044
https://mappingthelives.org/bio/393b35ef-00f7-461d-9226-c83f8821433a?language=en
https://archief.amsterdam/indexen/deeds/985333f2-6497-56a3-e053-b784100ade19?person=985333f2-6498-56a3-e053-b784100ade19