@misc{Alfons_Klafkowski_Józef_1946,
 author={Alfons Klafkowski},
 address={Poznań},
 year={1946},
 contents={Strona 410-412},
 publisher={Poznań : IZ,},
 language={pol},
 title={Józef M. Winiewicz: The Polish-German Frontier.},
 type={text},
}