@article{1183502570,
author = {Duffin, R. J. and Schaeffer, A. C.},
title = {On the extension of a functional inequality of S. Bernstein to non-analytic functions},
journal = {Bull. Amer. Math. Soc.},
volume = {46},
number = {11},
year = {1940},
pages = { 356-363},
language = {en},
url = {http://dml.mathdoc.fr/item/1183502570}
}
Duffin, R. J.; Schaeffer, A. C. On the extension of a functional inequality of S. Bernstein to non-analytic functions. Bull. Amer. Math. Soc., Tome 46 (1940) no. 11, pp. 356-363. http://gdmltest.u-ga.fr/item/1183502570/