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@article{DAN_1969_187_6_a5, author = {Yu. V. Egorov}, title = {The conditions of solvability of pseudodifferential equations}, journal = {Doklady Akademii Nauk}, pages = {1232--1234}, publisher = {mathdoc}, volume = {187}, number = {6}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1969_187_6_a5/} }
Yu. V. Egorov. The conditions of solvability of pseudodifferential equations. Doklady Akademii Nauk, Tome 187 (1969) no. 6, pp. 1232-1234. http://geodesic.mathdoc.fr/item/DAN_1969_187_6_a5/