@misc{Perzyna_P._Application_1979,
 author={Perzyna, P. and Wołoszyńska, K.},
 volume={31},
 number={2},
 copyright={Creative Commons Attribution BY 4.0 license},
 address={Warszawa},
 journal={Archives of Mechanics},
 howpublished={online},
 year={1979},
 publisher={Polish Scientific Publishers IFTR},
 language={eng},
 language={pol},
 language={rus},
 type={Text},
 title={Application of methods of characteristics and perturbation in solving the wave problems of viscoplasticity},
 URL={http://www.rcin.org.pl/Content/80426/PDF/WA727_90336_P.262a-Perzyna-Application.pdf},
 keywords={Mechanika stosowana - czasopisma [KABA]},
}