%0 Journal Article %A Zhang, Sheng %T Equivalence estimates for a class of singular perturbation problems %J Comptes Rendus. Mathématique %D 2006 %P 285-288 %V 342 %N 4 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.crma.2005.10.004/ %R 10.1016/j.crma.2005.10.004 %G en %F CRMATH_2006__342_4_285_0