(NbOLGARSKIE NARODNYE WY[IWKI (B:s (NzAPADNYE RAJONY (B/s - (N~UKANOWA(B, (NrOSICA s; (NwAKARELXSKIJ(B, (NhRISTO s ((NsOFIQ (B:s (NbOLG(B. (NHUDOVNIK(B,s, 1957)
Keywords: (NwY[IWKI BOLGARSKIE s