@article{GDZPPN002033348, title = {Bernstein's comparison theorem and a problem of Braess.}, journal = {Aequationes mathematicae}, volume = {22}, year = {1981}, pages = {98-107}, zbl = {0533.41021}, url = {http://dml.mathdoc.fr/item/GDZPPN002033348} }
Pinkus, A. Bernstein's comparison theorem and a problem of Braess.. Aequationes mathematicae, Tome 22 (1981) pp. 98-107. http://gdmltest.u-ga.fr/item/GDZPPN002033348/