@misc{Pfitzner_Josef_(1901-1945)_Schlesiens,
 author={Pfitzner, Josef (1901-1945)},
 howpublished={online},
 publisher={[s.n]},
 language={ger},
 type={książka},
 title={Schlesiens Geschichte und Schlesiens Name},
 keywords={historia, Śląsk (Polska ; region)},
}