TY - JOUR AU - K. Kh. Boimatov AU - A. G. Kostyuchenko TI - Spectral asymptotics of polynomial pencils of differential operators JO - Matematičeskie zametki PY - 1990 SP - 129 EP - 130 VL - 47 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1990_47_3_a16/ LA - ru ID - MZM_1990_47_3_a16 ER -