@article{bwmeta1.element.desklight-e7a429fe-fd87-4267-8c33-40f150873689, author = {M. Laczkovich}, title = {On Kemperman's inequality 2f(x)$\leq$ f(x+h)+f(x+2h)}, journal = {Colloquium Mathematicae}, volume = {49}, year = {1984}, pages = {109-115}, zbl = {0565.26006}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.desklight-e7a429fe-fd87-4267-8c33-40f150873689} }
M. Laczkovich. On Kemperman's inequality 2f(x)≤ f(x+h)+f(x+2h). Colloquium Mathematicae, Tome 49 (1984) pp. 109-115. http://gdmltest.u-ga.fr/item/bwmeta1.element.desklight-e7a429fe-fd87-4267-8c33-40f150873689/