@misc{Chopin_Fryderyk_(1810-1849)_Mazurka,
 author={Chopin, Fryderyk (1810-1849)},
 howpublished={online},
 publisher={Bureau T.A.V.E.N.U. Felix P. Abrahamson},
 type={starodruk},
 title={Mazurka : Op. 7 No. 2},
 keywords={nuty 20 w.},
}