Guaranteed and robust discontinuous Galerkin a posteriori error estimates for convection-diffusion-reaction problems. - Alexandre Ern; Annette F. Stephansen; Martin Vohralík (J. Comput. Appl. Math., 2010)

Convergence of the Multipoint Flux Approximation L-Method on General Grids. - Annette F. Stephansen (SIAM J. Numer. Anal., 2012)