%0 Journal Article %A BenoƮt, Eric %A El Hamidi, Abdallah %A Fruchard, Augustin %T On combined asymptotic expansions in singular perturbations %J Electronic Journal of Differential Equations %D 2002 %V 2002 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2002__2002__a158/ %G en %F EJDE_2002__2002__a158