Błaszak, T. (2023). The Hotel Section of the Koszalin Security Service and its Activities in the "Skanpol" and "Orbis-Solny" Facilities in Kołobrzeg and "Jałta" in Koszalin during 1973–1990. Aparat Represji W Polsce Ludowej 1944-1989, (20), 350–371. https://doi.org/10.48261/arprl222011