TY - JOUR AU - A. Sh. Shaldanbaev TI - Trace formulas for periodic and antiperiodic Sturm--Liouville problems JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 1982 SP - 6 EP - 11 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_1982_3_a1/ LA - ru ID - VMUMM_1982_3_a1 ER -