found: Polska - sąsiedztwo bliższe i dalsze, 2019:title page (... Wojciecha Materskiego) page 23, etc. (born 18 April 1944 in Warsaw; graduated from the Wydział Historyczny of the Uniwersytet Warszawski, 1968; doctorate, 1974 from the Katedra Historii Polski i Historii Powszechnej with a dissertation on Polish-Soviet relations in 1923-1924; habilitation, with a thesis on Soviet security services, 1991; member of the Samodzielna Pracowna Studiów Sowietologicznych in the Instytut Studiów Politycznych, since 1990) page 581 (... Voĭt︠s︡ekha Materskogo) page 583 (research interests: history of the Soviet Union and Polish-Soviet relations; the history of institutions of collective security and the transformation of the post-Soviet Region)