@article{1183495751,
author = {Carpenter, A. F.},
title = {A triad of ruled surfaces defined by reciprocal polars},
journal = {Bull. Amer. Math. Soc.},
volume = {38},
number = {12},
year = {1932},
pages = { 95-100},
language = {en},
url = {http://dml.mathdoc.fr/item/1183495751}
}
Carpenter, A. F. A triad of ruled surfaces defined by reciprocal polars. Bull. Amer. Math. Soc., Tome 38 (1932) no. 12, pp. 95-100. http://gdmltest.u-ga.fr/item/1183495751/