@misc{Dudek_Józef_(1939–2008)_The_1981,
 author={Dudek, Józef (1939–2008) and Graczyńska, Ewa},
 volume={29},
 editor={Polska Akademia Nauk.},
 editor={Państwowe Wydawnictwo Naukowe (1951–1992)},
 number={7-8},
 copyright={Rights Reserved - Restricted Access},
 address={Varsovie},
 howpublished={online},
 year={1981},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={eng},
 type={Text},
 title={The lattice of varieties of algebras},
}