Dr. Deniza Popova

Musician, Resercher, Author

https://www.academia.edu/2703800/Vater_Stilijan_ein_M%C3%B6nch_aus_Backovo_Seine_Pers%C3%B6nlichkeit_und_seine_Bedeutung_f%C3%BCr_die_bulgarisch_orthodoxe_Gesangspraxis