TY - JOUR AU - E. Y. Bidaibekov TI - Converse problems for ordinary differential equations JO - Matematičeskie zametki PY - 1979 SP - 53 EP - 59 VL - 26 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1979_26_1_a6/ LA - ru ID - MZM_1979_26_1_a6 ER -