%0 Journal Article %A Grosman, Sergey %T An equilibrated residual method with a computable error approximation for a singularly perturbed reaction-diffusion problem on anisotropic finite element meshes %J ESAIM: Modélisation mathématique et analyse numérique %D 2006 %P 239-267 %V 40 %N 2 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/m2an:2006010/ %R 10.1051/m2an:2006010 %G en %F M2AN_2006__40_2_239_0