@misc{Sztarko_Julian_Missa,
 author={Sztarko, Julian},
 howpublished={online},
 publisher={Gebethner i Wolff},
 publisher={Casimirus Rutski},
 publisher={Lit. J. Mękarski},
 type={druk muzyczny},
 title={Missa pro defunctis : ad unam vocem cum organo},
}