@misc{Herz_Henri_17,
 author={Herz, Henri},
 howpublished={online},
 publisher={b. w.},
 language={fre},
 language={ger},
 title={17 petites leçons pour le piano},
 type={nuty},
 keywords={muzyka - 19 w., nuty, Herz, Henri (1803-1888)},
}