@misc{Biskup_Marian_(1922-_)_Rola,
 author={Biskup, Marian (1922- )},
 copyright={Biskup, Marian},
 address={Poznań},
 howpublished={online},
 publisher={[s.n.]},
 language={pol},
 title={Rola Zakonu Krzyżackiego w wiekach XIII - XVI},
 type={nadbitka},
 keywords={Zakon Krzyżacki},
}