@article{1183492919, author = {Pierpont, James}, title = {Note on Einstein's equation of an orbit}, journal = {Bull. Amer. Math. Soc.}, volume = {34}, number = {6}, year = {1928}, pages = { 582-584}, language = {en}, url = {http://dml.mathdoc.fr/item/1183492919} }
Pierpont, James. Note on Einstein's equation of an orbit. Bull. Amer. Math. Soc., Tome 34 (1928) no. 6, pp. 582-584. http://gdmltest.u-ga.fr/item/1183492919/