@article{1183498928,
author = {Anderson, Nola L. and Ingold, Louis},
title = {Normals to a space $V\_n$ in hyperspace},
journal = {Bull. Amer. Math. Soc.},
volume = {42},
number = {12},
year = {1936},
pages = { 429-435},
language = {en},
url = {http://dml.mathdoc.fr/item/1183498928}
}
Anderson, Nola L.; Ingold, Louis. Normals to a space $V_n$ in hyperspace. Bull. Amer. Math. Soc., Tome 42 (1936) no. 12, pp. 429-435. http://gdmltest.u-ga.fr/item/1183498928/