@misc{Poniatowski_Stanisław_(1884-1945)_Plan,
 author={Poniatowski, Stanisław (1884-1945) and https://viaf.org/viaf/56736113/},
 howpublished={online},
 language={ger},
 language={pol},
 type={text},
 title={Plan badania rodziny},
 keywords={family relationships, promiscuity, family, Enrich Europeana Plus},
}