@article{1250130481, author = {Silverman, H.}, title = {Linear combinations of convex mappings}, journal = {Rocky Mountain J. Math.}, volume = {5}, number = {4}, year = {1975}, pages = { 629-632}, language = {en}, url = {http://dml.mathdoc.fr/item/1250130481} }
Silverman, H. Linear combinations of convex mappings. Rocky Mountain J. Math., Tome 5 (1975) no. 4, pp. 629-632. http://gdmltest.u-ga.fr/item/1250130481/