TY - JOUR AU - L. P. Tepoyan AU - Kalvand Daryoush TI - Neumann problem for fourth order degenerate ordinary differential equations JO - Proceedings of the Yerevan State University. Physical and mathematical sciences PY - 2010 SP - 22 EP - 26 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/UZERU_2010_1_a3/ LA - en ID - UZERU_2010_1_a3 ER -