@misc{Sanecki_H._Basic_1977,
 author={Sanecki, H. and Życzkowski, M.},
 volume={29},
 number={2},
 copyright={Creative Commons Attribution BY 4.0 license},
 address={Warszawa},
 journal={Archives of Mechanics},
 howpublished={online},
 year={1977},
 publisher={Polish Scientific Publishers IFTR},
 language={eng},
 language={pol},
 language={rus},
 type={Text},
 title={Basic equations of perfect plasticity parametrized by general stress functions + erratum},
 URL={http://rcin.org.pl/Content/117074/PDF/WA727_91462_P.262-Sanecki-Basic.pdf},
 keywords={Mechanika stosowana - czasopisma [KABA]},
}