@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/