TY - JOUR AU - Romi Shamoyan AU - Haiying Li TI - On the action of differentiation operator in some classes of Nevanlinna-Djrbashian type in the unit disk and polydisk JO - Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica PY - 2010 SP - 100 EP - 105 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/BASM_2010_1_a8/ LA - en ID - BASM_2010_1_a8 ER -