TY - JOUR AU - A. I. Zhilyaev TI - Some spectral properties of the Bessel differential operator JO - Doklady Akademii Nauk PY - 1988 SP - 278 EP - 280 VL - 301 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1988_301_2_a4/ LA - ru ID - DAN_1988_301_2_a4 ER -