1. A feed-back approach to error control in finite element methods: basic analysis and examples;Becker;East-West J. Numer. Math.,1996
2. A priori error analysis of residual-free bubbles for advection–diffusion problems;Brezzi;SIAM J. Numer. Anal.,1999
3. Nonlinear diffusion and discrete maximum principle for stabilized Galerkin approximations of the advection–diffusion–reaction equation;Burman;Comput. Methods Appl. Mech. Engrg.,2002
4. E. Burman, A. Ern, Stabilized Galerkin approximation of convection–diffusion–reaction equations: discrete maximum principle and convergence, preprint: http://ima.epfl.ch/~burman/DMP.ps.gz
5. Approximation by finite element functions using local regularization;Clément;RAIRO Anal. Numer.,1975