@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/