TY - JOUR AU - B. N. Biyarov TI - On the spectral properties of well-posed restrictions and extensions of the Sturm--Liouville operator JO - Differencialʹnye uravneniâ PY - 1994 SP - 2027 EP - 2032 VL - 30 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1994_30_12_a0/ LA - ru ID - DE_1994_30_12_a0 ER -