%0 Journal Article %A Poliakovsky, Arkady %T A method for establishing upper bounds for singular perturbation problems %J Comptes Rendus. Mathématique %D 2005 %P 97-102 %V 341 %N 2 %I Elsevier %U http://archive.numdam.org/articles/10.1016/j.crma.2005.06.009/ %R 10.1016/j.crma.2005.06.009 %G en %F CRMATH_2005__341_2_97_0