@article{1102986145, author = {Hartman, Philip}, title = {Convex sets and the bounded slope condition.}, journal = {Pacific J. Math.}, volume = {27}, number = {3}, year = {1968}, pages = { 511-522}, language = {en}, url = {http://dml.mathdoc.fr/item/1102986145} }
Hartman, Philip. Convex sets and the bounded slope condition.. Pacific J. Math., Tome 27 (1968) no. 3, pp. 511-522. http://gdmltest.u-ga.fr/item/1102986145/