@misc{Winter_Peter_von_(1754-1825)_Duetto,
 author={Winter, Peter von (1754-1825)},
 address={[s.l.]},
 howpublished={online},
 publisher={[s.n.]},
 language={ger},
 title={Duetto aus der Oper das unterbrochene Opferfest},
 type={rękopis muzyczny},
 keywords={opera},
}