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@article{DAN_1963_150_6_a10, author = {Yu. L. Rodin}, title = {On the algebraic theory of elliptic systems of first-order equations}, journal = {Doklady Akademii Nauk}, pages = {1228--1231}, publisher = {mathdoc}, volume = {150}, number = {6}, year = {1963}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1963_150_6_a10/} }
Yu. L. Rodin. On the algebraic theory of elliptic systems of first-order equations. Doklady Akademii Nauk, Tome 150 (1963) no. 6, pp. 1228-1231. http://geodesic.mathdoc.fr/item/DAN_1963_150_6_a10/