Jóźwik K. American intelligence responses to the murder of father Jerzy Popiełuszko. An analysis of declassified reports from 1984–1985. pis [Internet]. 2026 Nov. 2 [cited 2026 Nov. 13];47(1):359-87. Available from: https://czasopisma.ipn.gov.pl/index.php/pis/article/view/2903