@article{bwmeta1.element.desklight-14666e15-2d4d-4c3c-8814-5900b643046e,
author = {S. P. Hastings},
title = {On the existence of a solution of a system x= f(t, x) which remains in a given set},
journal = {Annales Polonici Mathematici},
volume = {19},
year = {1967},
pages = {201-205},
zbl = {0168.06303},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.desklight-14666e15-2d4d-4c3c-8814-5900b643046e}
}
S. P. Hastings. On the existence of a solution of a system ẋ= f(t, x) which remains in a given set. Annales Polonici Mathematici, Tome 19 (1967) pp. 201-205. http://gdmltest.u-ga.fr/item/bwmeta1.element.desklight-14666e15-2d4d-4c3c-8814-5900b643046e/