Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1965__6_2_a3, author = {H\'ajek, Otomar}, title = {Flows and periodic motions}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {165--178}, publisher = {mathdoc}, volume = {06}, number = {2}, year = {1965}, mrnumber = {0195079}, zbl = {0138.18203}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1965__6_2_a3/} }
Hájek, Otomar. Flows and periodic motions. Commentationes Mathematicae Universitatis Carolinae, Tome 06 (1965) no. 2, pp. 165-178. http://geodesic.mathdoc.fr/item/CMUC_1965__6_2_a3/