@article{1077493229,
author = {Stone, A. H. and Tukey, J. W.},
title = {Generalized ``sandwich'' theorems},
journal = {Duke Math. J.},
volume = {9},
number = {1},
year = {1942},
pages = { 356-359},
language = {en},
url = {http://dml.mathdoc.fr/item/1077493229}
}
Stone, A. H.; Tukey, J. W. Generalized “sandwich” theorems. Duke Math. J., Tome 9 (1942) no. 1, pp. 356-359. http://gdmltest.u-ga.fr/item/1077493229/