@misc{Maria_Kiełczewska-Zalewska_Powstanie_1954,
 author={Maria Kiełczewska-Zalewska},
 address={Poznań},
 year={1954},
 contents={Strona 1-7},
 publisher={Poznań : IZ,},
 language={pol},
 title={Powstanie problemu},
 type={text},
}