@article{1250128119,
author = {Howes, F.A.},
title = {Differential inequality techniques and singular perturbations},
journal = {Rocky Mountain J. Math.},
volume = {12},
number = {4},
year = {1982},
pages = { 767-778},
language = {en},
url = {http://dml.mathdoc.fr/item/1250128119}
}
Howes, F.A. Differential inequality techniques and singular perturbations. Rocky Mountain J. Math., Tome 12 (1982) no. 4, pp. 767-778. http://gdmltest.u-ga.fr/item/1250128119/