%0 Journal Article %A Chang, K. W. %A Liu, G. X. %T Boundary and Angular Layer Behavior in Singularly Perturbed Semilinear Systems %J Canadian mathematical bulletin %D 1985 %P 174-183 %V 28 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1985-018-8/ %R 10.4153/CMB-1985-018-8 %F 10_4153_CMB_1985_018_8