@article{GDZPPN002214245,
title = {Flows with cyclic winding numbers groups.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {475},
year = {1996},
pages = {207-215},
zbl = {0858.58041},
url = {http://dml.mathdoc.fr/item/GDZPPN002214245}
}
Athanassopoulos, Konstantin. Flows with cyclic winding numbers groups.. Journal für die reine und angewandte Mathematik, Tome 475 (1996) pp. 207-215. http://gdmltest.u-ga.fr/item/GDZPPN002214245/