@article{05007319,
title = {Monotone trajectories of dynamical systems and Clarke's generalized Jacobian.},
journal = {JIPAM. Journal of Inequalities in Pure \& Applied Mathematics [electronic only]},
volume = {6},
year = {2005},
zbl = {1090.49022},
language = {en},
url = {http://dml.mathdoc.fr/item/05007319}
}
Crespi, Giovanni P.; Rocca, Matteo. Monotone trajectories of dynamical systems and Clarke's generalized Jacobian.. JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only], Tome 6 (2005) . http://gdmltest.u-ga.fr/item/05007319/