@misc{Mozart_Wolfgang_Amadeus_(1756-1791)_Sonate,
 author={Mozart, Wolfgang Amadeus (1756-1791)},
 howpublished={online},
 publisher={Eduard Hallberger},
 language={ger},
 title={Sonate für das Pianoforte. Nr. 2, A moll},
 type={druk muzyczny},
 keywords={nuty},
}