%0 Journal Article %A Toselli, Andrea %T ${HP}$-finite element approximations on non-matching grids for partial differential equations with non-negative characteristic form %J ESAIM: Modélisation mathématique et analyse numérique %D 2003 %P 91-115 %V 37 %N 1 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/m2an:2003018/ %R 10.1051/m2an:2003018 %G en %F M2AN_2003__37_1_91_0