BAGIEŃSKI, W. Designing the Structure of the Office of State Protection (UOP) by the Officers of the Security Service in the First Months of 1990. Przegląd Archiwalny Instytutu Pamięci Narodowej, [S. l.], n. 15, p. 381–428, 2022. DOI: 10.48261/PAIPN221516. Disponível em: https://czasopisma.ipn.gov.pl/index.php/pa/article/view/2299. Acesso em: 10 nov. 2026.