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@article{AM2_1981__23_136894, author = {A. Pinkus}, title = {Bernstein's comparison theorem and a problem of {Braess.}}, journal = {Aequationes mathematicae}, pages = {98--107}, publisher = {mathdoc}, volume = {23}, year = {1981}, zbl = {0533.41021}, url = {http://geodesic.mathdoc.fr/item/AM2_1981__23_136894/} }
A. Pinkus. Bernstein's comparison theorem and a problem of Braess.. Aequationes mathematicae, Tome 23 (1981), pp. 98-107. http://geodesic.mathdoc.fr/item/AM2_1981__23_136894/