@article{1077376381,
author = {Hartman, Philip},
title = {The existence and stability of stationary points},
journal = {Duke Math. J.},
volume = {33},
number = {1},
year = {1966},
pages = { 281-290},
language = {en},
url = {http://dml.mathdoc.fr/item/1077376381}
}
Hartman, Philip. The existence and stability of stationary points. Duke Math. J., Tome 33 (1966) no. 1, pp. 281-290. http://gdmltest.u-ga.fr/item/1077376381/