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@article{DE_2006_42_8_a9, author = {A. P. Soldatov}, title = {On the index of the {Dirichlet} problem for elliptic systems on the plane}, journal = {Differencialʹnye uravneni\^a}, pages = {1092--1105}, publisher = {mathdoc}, volume = {42}, number = {8}, year = {2006}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_2006_42_8_a9/} }
A. P. Soldatov. On the index of the Dirichlet problem for elliptic systems on the plane. Differencialʹnye uravneniâ, Tome 42 (2006) no. 8, pp. 1092-1105. http://geodesic.mathdoc.fr/item/DE_2006_42_8_a9/