TY - JOUR AU - N. S. Bojinov TI - On the root expansion of a nonlocal Sturm--Liouville integro-differential operator with an integral part of Volterra type JO - Doklady Akademii Nauk PY - 1994 SP - 549 EP - 552 VL - 335 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1994_335_5_a0/ LA - ru ID - DAN_1994_335_5_a0 ER -