@article{1183492182, author = {Raynor, G. E.}, title = {Generalization of the Beltrami equations to curved $n$-space}, journal = {Bull. Amer. Math. Soc.}, volume = {33}, number = {6}, year = {1927}, pages = { 435-439}, language = {en}, url = {http://dml.mathdoc.fr/item/1183492182} }
Raynor, G. E. Generalization of the Beltrami equations to curved $n$-space. Bull. Amer. Math. Soc., Tome 33 (1927) no. 6, pp. 435-439. http://gdmltest.u-ga.fr/item/1183492182/