@article{1077375909,
author = {Rockafellar, R. T.},
title = {Helly's theorem and minima of convex functions},
journal = {Duke Math. J.},
volume = {32},
number = {1},
year = {1965},
pages = { 381-397},
language = {en},
url = {http://dml.mathdoc.fr/item/1077375909}
}
Rockafellar, R. T. Helly’s theorem and minima of convex functions. Duke Math. J., Tome 32 (1965) no. 1, pp. 381-397. http://gdmltest.u-ga.fr/item/1077375909/