@article{1183528184,
author = {Keller, Herbert B.},
title = {Existence theory for two point boundary value problems},
journal = {Bull. Amer. Math. Soc.},
volume = {72},
number = {4},
year = {1966},
pages = { 728-731},
language = {en},
url = {http://dml.mathdoc.fr/item/1183528184}
}
Keller, Herbert B. Existence theory for two point boundary value problems. Bull. Amer. Math. Soc., Tome 72 (1966) no. 4, pp. 728-731. http://gdmltest.u-ga.fr/item/1183528184/