@article{bwmeta1.element.bwnjournal-article-apmv5i3p303bwm,
author = {Barb\v alat, I.},
title = {Applications du principe topologique de T. Wa\.zewski aux \'equations diff\'erentielles du second ordre},
journal = {Annales Polonici Mathematici},
volume = {4},
year = {1958},
pages = {303-317},
zbl = {0084.28902},
language = {fra},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-apmv5i3p303bwm}
}
Barbǎlat, I. Applications du principe topologique de T. Ważewski aux équations différentielles du second ordre. Annales Polonici Mathematici, Tome 4 (1958) pp. 303-317. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-apmv5i3p303bwm/