@article{1183420474, author = {Lunn, Arthur C.}, title = {A continuous group related to von Seidel's optical theory}, journal = {Bull. Amer. Math. Soc.}, volume = {16}, number = {3}, year = {1909}, pages = { 25-30}, language = {en}, url = {http://dml.mathdoc.fr/item/1183420474} }
Lunn, Arthur C. A continuous group related to von Seidel's optical theory. Bull. Amer. Math. Soc., Tome 16 (1909) no. 3, pp. 25-30. http://gdmltest.u-ga.fr/item/1183420474/