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@article{DAN_1976_229_5_a7, author = {I. M. Spitkovsky}, title = {On partial indices of continuous matrix-valued functions}, journal = {Doklady Akademii Nauk}, pages = {1059--1062}, publisher = {mathdoc}, volume = {229}, number = {5}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1976_229_5_a7/} }
I. M. Spitkovsky. On partial indices of continuous matrix-valued functions. Doklady Akademii Nauk, Tome 229 (1976) no. 5, pp. 1059-1062. http://geodesic.mathdoc.fr/item/DAN_1976_229_5_a7/