TY - JOUR AU - S. Ya. Yakubov AU - K. S. Mamedov TI - Completeness of the eigen- and associated functions of certain nonregular boundary-value problems for ordinary differential equations JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1980 SP - 93 EP - 94 VL - 14 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1980_14_4_a23/ LA - ru ID - FAA_1980_14_4_a23 ER -