SZTAMA, P. Adam Humer: his life before the Communist security apparatus. A springboard for a biography. Komunizm: System - Ludzie - Dokumentacja, [S. l.], n. 6, p. 150–185, 2023. Disponível em: https://czasopisma.ipn.gov.pl/index.php/k/article/view/1330. Acesso em: 5 lip. 2024.