@article{GDZPPN001171763,
title = {Difference Approximations for Singular Perturbations of Systems of Ordinary Differential Equations.},
journal = {Numerische Mathematik},
volume = {22},
year = {1974},
pages = {367-392},
zbl = {0314.65042},
url = {http://dml.mathdoc.fr/item/GDZPPN001171763}
}
Abrahamsson, L.R.; Keller, H.B.; Kreiss, H.O. Difference Approximations for Singular Perturbations of Systems of Ordinary Differential Equations.. Numerische Mathematik, Tome 22 (1974) pp. 367-392. http://gdmltest.u-ga.fr/item/GDZPPN001171763/