%0 Journal Article %A Patrick Hild %A Vanessa Lleras %A Yves Renard %T A posteriori error analysis for Poisson's equation approximated by XFEM %J ESAIM. Proceedings %D 2009 %P 107-121 %V 27 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1051/proc/2009022/ %R 10.1051/proc/2009022 %G en %F EP_2009_27_a6