@article{GDZPPN002037882, title = {On the lower hull of convex functions.}, journal = {Aequationes mathematicae}, volume = {38}, year = {1989}, pages = {192-210}, zbl = {0686.26003}, url = {http://dml.mathdoc.fr/item/GDZPPN002037882} }
Kominek, Z.; Kuczma, M. On the lower hull of convex functions.. Aequationes mathematicae, Tome 38 (1989) pp. 192-210. http://gdmltest.u-ga.fr/item/GDZPPN002037882/