@misc{Obrecht_Jacob_(ca_1450-1505)._Missa,
 author={Obrecht, Jacob (ca 1450-1505).},
 howpublished={online},
 publisher={G. Alsbach & Cie},
 publisher={Breitkopf & Härtel},
 language={ger},
 title={Missa sine nomine},
 type={[Partytura]},
 type={druk muzyczny},
}