@article{1183496628,
author = {Schoenberg, I. J.},
title = {Convex domains and linear combinations of continuous functions},
journal = {Bull. Amer. Math. Soc.},
volume = {39},
number = {12},
year = {1933},
pages = { 273-280},
language = {en},
url = {http://dml.mathdoc.fr/item/1183496628}
}
Schoenberg, I. J. Convex domains and linear combinations of continuous functions. Bull. Amer. Math. Soc., Tome 39 (1933) no. 12, pp. 273-280. http://gdmltest.u-ga.fr/item/1183496628/