@article{1181071919,
author = {Aboufadel, Edward F.},
title = {Qualitative Analysis of a Singularly-Perturbed System of Differential Equations Related to the Van der Pol Equations},
journal = {Rocky Mountain J. Math.},
volume = {27},
number = {4},
year = {1997},
pages = { 367-385},
language = {en},
url = {http://dml.mathdoc.fr/item/1181071919}
}
Aboufadel, Edward F. Qualitative Analysis of a Singularly-Perturbed System of Differential Equations Related to the Van der Pol Equations. Rocky Mountain J. Math., Tome 27 (1997) no. 4, pp. 367-385. http://gdmltest.u-ga.fr/item/1181071919/