@Article{532658,
     author = "Czesław Grajewski",
     title = ""Studia Gregoriańskie", 2015, z. 8",
     year =  2015,
     volume =  21,
     number =  1(45),
     journal =  Liturgia Sacra. Liturgia - Musica - Ars,
     pages =  s. 273-275,
    }