@misc{Biernacki_Andrzej_List_1990,
 author={Biernacki, Andrzej},
 number={3},
 copyright={Rights Reserved - Free Access},
 journal={Teksty Drugie},
 address={Warszawa},
 howpublished={online},
 year={1990},
 publisher={IBL PAN},
 language={pol},
 title={List wnuka},
 type={Text},
 URL={http://www.rcin.org.pl/Content/234509/WA248_71676_P-I-2524_biernacki-list_o.pdf},
 keywords={Mycielski, Zygmunt, Il Conde, Szembek, Zygmunt},
}