@misc{_Spis_1989,
 volume={68},
 number={4},
 copyright={Rights Reserved - Free Access},
 address={Warszawa},
 journal={Electronic Materials},
 howpublished={online},
 year={1989},
 publisher={Wydaw. Przemysłowe WEMA},
 language={pol},
 title={Spis treści 1989 nr 4(68) = Content 1989 nr 4(68)},
 type={Text},
 URL={http://rcin.org.pl/Content/10738/PDF/WA901_13361_M1_r1989-z4-68_Mater-Elektroniczne_Spis-tresci_i.pdf},
 keywords={Electronic - materials, Electronic - journal - material},
}