@misc{Klecha_Tadeusz_Nonlinear_1998,
 author={Klecha, Tadeusz},
 copyright={Rights Reserved - Free Access},
 address={Warszawa},
 journal={Prace IPPT IFTR REPORTS},
 howpublished={online},
 year={1998},
 publisher={Instytut Podstawowych Problemów Techniki Polskiej Akademii Nauk},
 language={eng},
 type={Text},
 title={Nonlinear eigenvalue problem in elastodynamics},
 URL={http://rcin.org.pl/Content/3371/PDF/WA727_5659_56545-3-1998_Nonlinear-eigen.pdf},
 keywords={Elastodynamika [KABA]},
}