@misc{Londzin_Józef_(1862-1929)_Polskość,
 author={Londzin, Józef (1862-1929)},
 howpublished={online},
 publisher={Nakładem Autora},
 language={Polish},
 title={Polskość Śląska Cieszyńskiego},
 type={book},
 keywords={Cieszyn Silesia, political history, history of administration, Polishness, national identity},
}