@article{1102947970,
author = {Ribe, M.},
title = {Necessary convexity conditions for the Hahn-Banach theorem in metrizable spaces.},
journal = {Pacific J. Math.},
volume = {49},
number = {2},
year = {1973},
pages = { 715-732},
language = {en},
url = {http://dml.mathdoc.fr/item/1102947970}
}
Ribe, M. Necessary convexity conditions for the Hahn-Banach theorem in metrizable spaces.. Pacific J. Math., Tome 49 (1973) no. 2, pp. 715-732. http://gdmltest.u-ga.fr/item/1102947970/