@misc{Offenbach_Jacques_(1819-1880)_Barcarolle,
 author={Offenbach, Jacques (1819-1880)},
 howpublished={online},
 publisher={Gebethner i Wolff},
 type={druk muzyczny},
 title={Barcarolle : de l' op. „Les contes d'Hoffmann”},
 keywords={nuty 20 w.},
}