@article{05626164, title = {On step-like contrast structure of singularly perturbed systems.}, journal = {Boundary Value Problems [electronic only]}, volume = {2009}, year = {2009}, doi = {10.1155/2009/634324}, zbl = {1179.35045}, language = {en}, url = {http://dml.mathdoc.fr/item/05626164} }
Ni, Mingkang; Wang, Zhiming. On step-like contrast structure of singularly perturbed systems.. Boundary Value Problems [electronic only], Tome 2009 (2009) . doi : 10.1155/2009/634324. http://gdmltest.u-ga.fr/item/05626164/