@misc{Dietz_d'Arme_Ludwik_(1850-1936)_Polka,
 author={Dietz d'Arme, Ludwik (1850-1936)},
 howpublished={online},
 publisher={Julian Müller},
 title={Polka mazurka : na fortepian},
 type={druk muzyczny},
 keywords={nuty 19 w.},
}