@article{1183507537, author = {Beckenbach, E. F.}, title = {On a characteristic property of linear functions}, journal = {Bull. Amer. Math. Soc.}, volume = {51}, number = {11}, year = {1945}, pages = { 923-930}, language = {en}, url = {http://dml.mathdoc.fr/item/1183507537} }
Beckenbach, E. F. On a characteristic property of linear functions. Bull. Amer. Math. Soc., Tome 51 (1945) no. 11, pp. 923-930. http://gdmltest.u-ga.fr/item/1183507537/