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@article{IVM_1970_2_a9, author = {E. L. Rabkin}, title = {The number of extrema of polynomials in {Chebyshev} systems}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {70--75}, publisher = {mathdoc}, number = {2}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1970_2_a9/} }
E. L. Rabkin. The number of extrema of polynomials in Chebyshev systems. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 2 (1970), pp. 70-75. http://geodesic.mathdoc.fr/item/IVM_1970_2_a9/