@article{GDZPPN002445905,
title = {One-dimensional chain recurrent sets of flows in the 2-sphere.},
journal = {Mathematische Zeitschrift},
volume = {221},
year = {1996},
pages = {643-650},
zbl = {0872.58051},
url = {http://dml.mathdoc.fr/item/GDZPPN002445905}
}
Athanassopoulos, K. One-dimensional chain recurrent sets of flows in the 2-sphere.. Mathematische Zeitschrift, Tome 221 (1996) pp. 643-650. http://gdmltest.u-ga.fr/item/GDZPPN002445905/