@article{1183419754, author = {Swift, Elijah}, title = {Note on the second variation in an isoperimetric problem}, journal = {Bull. Amer. Math. Soc.}, volume = {15}, number = {3}, year = {1908}, pages = { 373-375}, language = {en}, url = {http://dml.mathdoc.fr/item/1183419754} }
Swift, Elijah. Note on the second variation in an isoperimetric problem. Bull. Amer. Math. Soc., Tome 15 (1908) no. 3, pp. 373-375. http://gdmltest.u-ga.fr/item/1183419754/