@article{GDZPPN002387328,
title = {Existence Theorems and Extreme Solutions for Inequalities Concerning Convex Functions or Linear Transformations.},
journal = {Mathematische Zeitschrift},
volume = {67},
year = {1957},
pages = {205-216},
zbl = {0078.10204},
url = {http://dml.mathdoc.fr/item/GDZPPN002387328}
}
Fan, Ky. Existence Theorems and Extreme Solutions for Inequalities Concerning Convex Functions or Linear Transformations.. Mathematische Zeitschrift, Tome 67 (1957) pp. 205-216. http://gdmltest.u-ga.fr/item/GDZPPN002387328/