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@article{DAN_1969_185_6_a5, author = {N. H. Ibragimov}, title = {The invariance of the {Dirac} equations}, journal = {Doklady Akademii Nauk}, pages = {1226--1228}, publisher = {mathdoc}, volume = {185}, number = {6}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1969_185_6_a5/} }
N. H. Ibragimov. The invariance of the Dirac equations. Doklady Akademii Nauk, Tome 185 (1969) no. 6, pp. 1226-1228. http://geodesic.mathdoc.fr/item/DAN_1969_185_6_a5/