@article{03770086,
title = {Application of Chapligin's theorem to autonomous systems.},
journal = {Publications de l'Institut Math\'ematique. Nouvelle S\'erie},
volume = {29(43)},
year = {1981},
pages = {159-170},
zbl = {0489.34046},
language = {en},
url = {http://dml.mathdoc.fr/item/03770086}
}
Radasin, Zvezdana. Application of Chapligin's theorem to autonomous systems.. Publications de l'Institut Mathématique. Nouvelle Série, Tome 29(43) (1981) pp. 159-170. http://gdmltest.u-ga.fr/item/03770086/