TY - JOUR AU - V. A. Yurko TI - An inverse problem for higher-order differential equations with a~singularity JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1993 SP - 59 EP - 67 IS - 7 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1993_7_a10/ LA - ru ID - IVM_1993_7_a10 ER -