Gercman E.V. V poiskah pesnopenij grecheskoj cerkvi. Preosvyashhennyj Porfirij Uspenskij i ego kollekciya drevnih muzykalnyh rukopisej. In Russian/ Gertsman E.in. in search Lamentations Greek Church. Preosvyashhennyj Porphyry Assumption and his collection ancient musical manuscripts. In Russian, Petersburg - landofmagazines.com

TransliterationGercman E.V. V poiskah pesnopenij grecheskoj cerkvi. Preosvyashhennyj Porfirij Uspenskij i ego kollekciya drevnih muzykalnyh rukopisej. In Russian

In EnglishGertsman E.in. in search Lamentations Greek Church. Preosvyashhennyj Porphyry Assumption and his collection ancient musical manuscripts. In Russian, Petersburg

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