@misc{Poniatowski_Stanisław_(1884–1945)_Mahavrata,,
 author={Poniatowski, Stanisław (1884–1945) and https://viaf.org/viaf/56736113/},
 howpublished={online},
 language={pol},
 type={tekst},
 title={Mahavrata, Przedmowa},
 keywords={Mahavrata},
}