@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/