%0 Journal Article %A B. N. Biyarov %T On the Spectrum of Well-Defined Restrictions and Extensions for the Laplace Operator %J Matematičeskie zametki %D 2014 %P 507-516 %V 95 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2014_95_4_a2/ %G ru %F MZM_2014_95_4_a2