@Article{152517,
     author = "Ewa Wipszycka, Tomasz Derda",
     title = "L'emploi des titres 'abba', 'apa' et 'papas' dans l'Egypte byzantine ",
     year =  1994,
     volume =  24,
     number =  ,
     journal =  The Journal of Juristic Papyrology,
     pages =  s. 23-56,
    }