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@article{AM2_1981__22_136885, author = {A. Pinkus}, title = {Bernstein's comparison theorem and a problem of {Braess.} {(Short} {Communication).}}, journal = {Aequationes mathematicae}, pages = {318--320}, publisher = {mathdoc}, volume = {22}, year = {1981}, zbl = {0533.41021}, url = {http://geodesic.mathdoc.fr/item/AM2_1981__22_136885/} }
A. Pinkus. Bernstein's comparison theorem and a problem of Braess. (Short Communication).. Aequationes mathematicae, Tome 22 (1981), pp. 318-320. http://geodesic.mathdoc.fr/item/AM2_1981__22_136885/