@article{1183494158,
author = {Carpenter, A. F.},
title = {Note on ruled surfaces and their
developables},
journal = {Bull. Amer. Math. Soc.},
volume = {36},
number = {11},
year = {1930},
pages = { 525-528},
language = {en},
url = {http://dml.mathdoc.fr/item/1183494158}
}
Carpenter, A. F. Note on ruled surfaces and their developables. Bull. Amer. Math. Soc., Tome 36 (1930) no. 11, pp. 525-528. http://gdmltest.u-ga.fr/item/1183494158/