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@article{DAN_1974_216_1_a11, author = {A. A. Tsygankov}, title = {Simultaneous orthogonality of polynomials on a contour and over the area of a region}, journal = {Doklady Akademii Nauk}, pages = {46--48}, publisher = {mathdoc}, volume = {216}, number = {1}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1974_216_1_a11/} }
A. A. Tsygankov. Simultaneous orthogonality of polynomials on a contour and over the area of a region. Doklady Akademii Nauk, Tome 216 (1974) no. 1, pp. 46-48. http://geodesic.mathdoc.fr/item/DAN_1974_216_1_a11/