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@article{PIM_1975_N_S_18_32_a1, author = {R. Bojani\'c and J. M. Elkins}, title = {Bernstein's {Constant} {And} {Best} {Approximatioin} {On} [0, \ensuremath{\infty})}, journal = {Publications de l'Institut Math\'ematique}, pages = {19 }, publisher = {mathdoc}, volume = {_N_S_18}, number = {32}, year = {1975}, url = {http://geodesic.mathdoc.fr/item/PIM_1975_N_S_18_32_a1/} }
R. Bojanić; J. M. Elkins. Bernstein's Constant And Best Approximatioin On [0, ∞). Publications de l'Institut Mathématique, _N_S_18 (1975) no. 32, p. 19 . http://geodesic.mathdoc.fr/item/PIM_1975_N_S_18_32_a1/