@article{1250128492, author = {Lapidot, Eitan}, title = {On generalized mid-point convexity}, journal = {Rocky Mountain J. Math.}, volume = {11}, number = {4}, year = {1981}, pages = { 571-576}, language = {en}, url = {http://dml.mathdoc.fr/item/1250128492} }
Lapidot, Eitan. On generalized mid-point convexity. Rocky Mountain J. Math., Tome 11 (1981) no. 4, pp. 571-576. http://gdmltest.u-ga.fr/item/1250128492/