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@article{DAN_1967_176_6_a6, author = {I. A. Kipriyanov}, title = {Self-adjoint extensions of certain singular partial differential operators}, journal = {Doklady Akademii Nauk}, pages = {1236--1239}, publisher = {mathdoc}, volume = {176}, number = {6}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1967_176_6_a6/} }
I. A. Kipriyanov. Self-adjoint extensions of certain singular partial differential operators. Doklady Akademii Nauk, Tome 176 (1967) no. 6, pp. 1236-1239. http://geodesic.mathdoc.fr/item/DAN_1967_176_6_a6/