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@article{IVM_1967_9_a7, author = {V. N. Pivnenko}, title = {The resolvent of self-adjoint extension of an elliptic operator}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {69--74}, publisher = {mathdoc}, number = {9}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1967_9_a7/} }
V. N. Pivnenko. The resolvent of self-adjoint extension of an elliptic operator. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 9 (1967), pp. 69-74. http://geodesic.mathdoc.fr/item/IVM_1967_9_a7/