@misc{Nitschmann_Heinrich_Alla,
 author={Nitschmann Heinrich},
 howpublished={online},
 language={ger},
 title={Alla Mazurka, op. 17 : Pianoforte & Violine},
 type={rękopis},
 keywords={muzyka - 19 w., nuty, Nitschmann, Heinrich (1826-1905)},
}