@Article{532573,
     author = "Mateusz Potoczny",
     title = "Ks. Prof. Petrus Yousif (1936-2015) ",
     year =  2016,
     volume =  22,
     number =  1(47),
     journal =  Liturgia Sacra. Liturgia - Musica - Ars,
     pages =  s. 257-259,
    }