@article{1183525260,
author = {Lima, Elon L.},
title = {Commuting vector fields on 2-manifolds},
journal = {Bull. Amer. Math. Soc.},
volume = {69},
number = {4},
year = {1963},
pages = { 366-368},
language = {en},
url = {http://dml.mathdoc.fr/item/1183525260}
}
Lima, Elon L. Commuting vector fields on 2-manifolds. Bull. Amer. Math. Soc., Tome 69 (1963) no. 4, pp. 366-368. http://gdmltest.u-ga.fr/item/1183525260/