@misc{Mendelssohn-Bartholdy_Felix_Sonate.,
 author={Mendelssohn-Bartholdy, Felix},
 howpublished={online},
 publisher={Carl Schulz},
 title={Sonate. Op. 4 : Violine},
 type={muzykalia},
 keywords={druk muzyczny, nuty, Mendelssohn-Bartholdy, Felix (1809-1847)},
}