1. Arbogast, T., Dawson, C.N., Keenan, P.T., Wheeler, M.F., Yotov, I.: Enhanced cell-centered finite differences for elliptic equations on general geometry. SIAM J. Numer. Anal. 19, 404–425 (1998)
2. Arbogast, T., Wheeler, M.F., Yotov, I.: Mixed finite elements for elliptic problems with tensor coefficients as cell-centered finite differences. SIAM J. Numer. Anal. 34, 828–852 (1997)
3. Brandts, J., Krizek, M.: History and future of super-convergence in three-dimensional finite element methods. In: Preceedings of the Conference on Finite Element Methods: Three-dimensional Problems, GAKUTO Internat, Ser. Math. Sci. Appl. 15, Gakkotosho, Tokyo, pp 24–35 (2001)
4. Bank, R. E., Xu, J.: Asymptotic exact a posteriori error estimators, Part I: Grids with superconvergence. SIAM J. Numer. Anal. 41, 2294–2312 (2003)
5. Bank, R. E., Xu, J.: Asymptotic exact a posteriori error estimators, Part II: General unstructured grids. SIAM J. Numer. Anal. 41, 2313–2332 (2003)