@misc{Poniatowski_Stanisław_(1884-1945)_Słowianie,
 author={Poniatowski, Stanisław (1884-1945) and https://viaf.org/viaf/56736113/},
 howpublished={online},
 language={pol},
 type={text},
 title={Słowianie wschodni},
 keywords={Small Ruthenia, Belarus' culture, Ukrainians, Slavs' culture, Great Ruthenia, Enrich Europeana Plus},
}