@article{1183503463, author = {Rad\'o, T. and Reichelderfer, P.}, title = {Note on an inequality of Steiner}, journal = {Bull. Amer. Math. Soc.}, volume = {47}, number = {11}, year = {1941}, pages = { 102-108}, language = {en}, url = {http://dml.mathdoc.fr/item/1183503463} }
Radó, T.; Reichelderfer, P. Note on an inequality of Steiner. Bull. Amer. Math. Soc., Tome 47 (1941) no. 11, pp. 102-108. http://gdmltest.u-ga.fr/item/1183503463/