@misc{Petryk_H._The_1991,
 author={Petryk, H.},
 volume={43},
 number={4},
 copyright={Creative Commons Attribution BY 4.0 license},
 journal={Archives of Mechanics},
 address={Warszawa},
 howpublished={online},
 year={1991},
 publisher={Polish Scientific Publishers IFTR},
 language={eng},
 title={The energy criteria of instability in time-dependent inelastic solids},
 type={Text},
 URL={http://rcin.org.pl/Content/69951/PDF/WA727_18045_43-4-1991_AMS_Petryk-05.pdf},
 keywords={Mechanika stosowana - czasopisma [KABA]},
}