@article{1250523176,
author = {Niwa, Toshio},
title = {Homomorphisms of differentiable dynamical systems},
journal = {J. Math. Kyoto Univ.},
volume = {14},
number = {3},
year = {1974},
pages = { 597-605},
language = {en},
url = {http://dml.mathdoc.fr/item/1250523176}
}
Niwa, Toshio. Homomorphisms of differentiable dynamical systems. J. Math. Kyoto Univ., Tome 14 (1974) no. 3, pp. 597-605. http://gdmltest.u-ga.fr/item/1250523176/