TY - JOUR AU - L. B. Zelenko TI - Asymptotic distribution of eigenvalues in a~lacuna of the continuous spectrum of the perturbed Hill operator JO - Matematičeskie zametki PY - 1976 SP - 341 EP - 350 VL - 20 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1976_20_3_a4/ LA - ru ID - MZM_1976_20_3_a4 ER -