@article{1183421114, author = {Snyder, Virgil}, title = {Geometric Transformations}, journal = {Bull. Amer. Math. Soc.}, volume = {18}, number = {3}, year = {1911}, pages = { 249-253}, language = {en}, url = {http://dml.mathdoc.fr/item/1183421114} }
Snyder, Virgil. Geometric Transformations. Bull. Amer. Math. Soc., Tome 18 (1911) no. 3, pp. 249-253. http://gdmltest.u-ga.fr/item/1183421114/