@article{1183423627,
author = {Sisam, C. H.},
title = {On a configuration on certain surfaces},
journal = {Bull. Amer. Math. Soc.},
volume = {23},
number = {2},
year = {1916},
pages = { 381-383},
language = {en},
url = {http://dml.mathdoc.fr/item/1183423627}
}
Sisam, C. H. On a configuration on certain surfaces. Bull. Amer. Math. Soc., Tome 23 (1916) no. 2, pp. 381-383. http://gdmltest.u-ga.fr/item/1183423627/