KUTA, C. The Operational Strategy of the Security Service (SB) towards the Second Circulation in the Polish People’s Republic from 1980 to 1990. Aparat Represji w Polsce Ludowej 1944-1989, [S. l.], n. 20, p. 175–208, 2023. DOI: 10.48261/arprl222005. Disponível em: https://czasopisma.ipn.gov.pl/index.php/arpl/article/view/1857. Acesso em: 21 lis. 2024.