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@article{DAN_1975_225_6_a10, author = {M. A. Shubin}, title = {The {Favard--Muhamadiev} theory and pseudo-differential operators}, journal = {Doklady Akademii Nauk}, pages = {1278--1280}, publisher = {mathdoc}, volume = {225}, number = {6}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1975_225_6_a10/} }
M. A. Shubin. The Favard--Muhamadiev theory and pseudo-differential operators. Doklady Akademii Nauk, Tome 225 (1975) no. 6, pp. 1278-1280. http://geodesic.mathdoc.fr/item/DAN_1975_225_6_a10/