@article{1077470262,
author = {Harris, Jr., W. A.},
title = {Singular perturbations of a boundary value problem for a
nonlinear system of differential equations},
journal = {Duke Math. J.},
volume = {29},
number = {1},
year = {1962},
pages = { 429-445},
language = {en},
url = {http://dml.mathdoc.fr/item/1077470262}
}
Harris, Jr., W. A. Singular perturbations of a boundary value problem for a
nonlinear system of differential equations. Duke Math. J., Tome 29 (1962) no. 1, pp. 429-445. http://gdmltest.u-ga.fr/item/1077470262/