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@article{DAN_1963_152_3_a13, author = {S. G. Mikhlin}, title = {On the index of a system of singular equations}, journal = {Doklady Akademii Nauk}, pages = {555--558}, publisher = {mathdoc}, volume = {152}, number = {3}, year = {1963}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1963_152_3_a13/} }
S. G. Mikhlin. On the index of a system of singular equations. Doklady Akademii Nauk, Tome 152 (1963) no. 3, pp. 555-558. http://geodesic.mathdoc.fr/item/DAN_1963_152_3_a13/