TY - JOUR AU - B. N. Biyarov TI - On the Spectrum of Well-Defined Restrictions and Extensions for the Laplace Operator JO - Matematičeskie zametki PY - 2014 SP - 507 EP - 516 VL - 95 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2014_95_4_a2/ LA - ru ID - MZM_2014_95_4_a2 ER -