Sofijskijat ezik na preselnicite ot zapadnite pokrajnini - Kănčeva, Pavlina G. (Akad. Izdat. "Prof. Marin Drinov", 2008)
PST: The Sofia language of the immigrants from the Western outlaying districts. - In kyrill. Schr., bulg. - Zsfassung in engl. Sprache