Religious centers and their missions to Kievan Rus': from Ol'ga to Volodimer

     
      L 11
      Labunka,M.
      Religious centers and their missions to Kievan Rus': from Ol'ga to Volodimer M. Labunka // Harvard Ukrainian studies. - 1988-1989. - Vol. XII-XIII. - С. 159-193 - .