@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/