@misc{Zil'ber_Boris_Iosifovič_Some_1981,
 author={Zil'ber, Boris Iosifovič},
 volume={29},
 editor={Państwowe Wydawnictwo Naukowe (1951–1992)},
 editor={Polska Akademia Nauk.},
 number={1-2},
 copyright={Rights Reserved - Restricted Access},
 address={Varsovie},
 howpublished={online},
 year={1981},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={eng},
 title={Some problems concerning categorical theories},
 type={Text},
}