@article{GDZPPN002420554,
title = {Bifurcations and Hamilton's Principle.},
journal = {Mathematische Zeitschrift},
volume = {162},
year = {1978},
pages = {235-248},
zbl = {0366.58003},
url = {http://dml.mathdoc.fr/item/GDZPPN002420554}
}
Weinstein, Alan. Bifurcations and Hamilton's Principle.. Mathematische Zeitschrift, Tome 162 (1978) pp. 235-248. http://gdmltest.u-ga.fr/item/GDZPPN002420554/