1.
Olbert R. Activities of Agent “Konarski” and the Investigation of the Federal Republic of Germany Embassy Employees in Warsaw by the Ministry of Internal Affairs Department II. arpl [Internet]. 2025 Feb. 4 [cited 2026 Nov. 11];(22):689-728. Available from: https://czasopisma.ipn.gov.pl/index.php/arpl/article/view/2662