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@article{IVM_1960_4_a0, author = {G. I. Barkov}, title = {Some systems of polynomials orthogonal in two symmetric intervals}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {3--16}, publisher = {mathdoc}, number = {4}, year = {1960}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1960_4_a0/} }
G. I. Barkov. Some systems of polynomials orthogonal in two symmetric intervals. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 4 (1960), pp. 3-16. http://geodesic.mathdoc.fr/item/IVM_1960_4_a0/