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@article{MS2_1994__74_1_167284, author = {Anders, Maz'ya, V. Carlsson}, title = {On {Approximation} in {Weighted} {Sobolev} {Spaces} and {Self-Adjointness.}}, journal = {Mathematica Scandinavica}, pages = {111--124}, publisher = {mathdoc}, volume = {74}, number = {1}, year = {1994}, zbl = {0824.46035}, url = {http://geodesic.mathdoc.fr/item/MS2_1994__74_1_167284/} }
Anders, Maz'ya, V. Carlsson. On Approximation in Weighted Sobolev Spaces and Self-Adjointness.. Mathematica Scandinavica, Tome 74 (1994) no. 1, pp. 111-124. http://geodesic.mathdoc.fr/item/MS2_1994__74_1_167284/