@article{1183496750, author = {Blumenthal, L. M.}, title = {A note on the four-point property}, journal = {Bull. Amer. Math. Soc.}, volume = {39}, number = {12}, year = {1933}, pages = { 423-426}, language = {en}, url = {http://dml.mathdoc.fr/item/1183496750} }
Blumenthal, L. M. A note on the four-point property. Bull. Amer. Math. Soc., Tome 39 (1933) no. 12, pp. 423-426. http://gdmltest.u-ga.fr/item/1183496750/