@article{DAN_1964_155_4_a4, author = {R. A. Kordzadze}, title = {A general boundary-value problem with shift for a second-order equation of elliptic type}, journal = {Doklady Akademii Nauk}, pages = {739--742}, publisher = {mathdoc}, volume = {155}, number = {4}, year = {1964}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1964_155_4_a4/} }