Jacek Topylo has written:
'Departament X MBP w latach 1949-1954'
Jacek Indelak has written: 'Niezgoda'
Jacek Bierut has written: 'PiT'
Jacek Goclon has written: 'W obronie Europy'
Jozef Jacek Rojek has written: 'Sonety Nieprawe'
Jacek Wegner has written: 'Rzeczpospolita' -- subject(s): Miscellanea.., History
Jacek Gorczyca has written: 'Plant bugs' -- subject(s): Miridae
Jacek Zychowicz has written: 'Mieszanka wybuchowa' -- subject(s): Polish Feuilletons
Jacek Pielas has written: 'Olesniccy herbu Debno w XVIXVII wieku'
Jacek Syski has written: 'Czuwanie rozumu' -- subject(s): Education, Intellectuals, Interviews, Philosophy
Jacek Bukowski has written: 'Patty czy Tania' -- subject(s): Symbionese Liberation Army
Jacek Andrzejowski has written: 'Nadkole 2' -- subject(s): Burial, Przeworsk culture, Excavations (Archaeology), Antiquities
Jacek Mazurkiewicz has written: 'Models and methodology of system dependability' -- subject(s): Computer networks, Computer software