@article{1183423670,
author = {Nelson, Alfred L.},
title = {Quasi-periodicity of asymptotic plane nets},
journal = {Bull. Amer. Math. Soc.},
volume = {23},
number = {2},
year = {1916},
pages = { 445-455},
language = {en},
url = {http://dml.mathdoc.fr/item/1183423670}
}
Nelson, Alfred L. Quasi-periodicity of asymptotic plane nets. Bull. Amer. Math. Soc., Tome 23 (1916) no. 2, pp. 445-455. http://gdmltest.u-ga.fr/item/1183423670/