@article{1183415863, author = {Safford, F. H.}, title = {Surfaces of revolution in the theory of Lam\'e's products}, journal = {Bull. Amer. Math. Soc.}, volume = {6}, number = {3}, year = {1899}, pages = { 431-437}, language = {en}, url = {http://dml.mathdoc.fr/item/1183415863} }
Safford, F. H. Surfaces of revolution in the theory of Lamé's products. Bull. Amer. Math. Soc., Tome 6 (1899) no. 3, pp. 431-437. http://gdmltest.u-ga.fr/item/1183415863/