@article{1077375360,
author = {Wu, Ta-Sun},
title = {Continuous flows with closed orbits},
journal = {Duke Math. J.},
volume = {31},
number = {1},
year = {1964},
pages = { 463-469},
language = {en},
url = {http://dml.mathdoc.fr/item/1077375360}
}
Wu, Ta-Sun. Continuous flows with closed orbits. Duke Math. J., Tome 31 (1964) no. 1, pp. 463-469. http://gdmltest.u-ga.fr/item/1077375360/