1. Optimal stress locations in finite element models;Barlow;Int. J. Numer. Methods Eng.,1976
2. Interpretation of finite element procedures in stress error minimization;Herrmann;Proc. Am. Soc. Civ. Eng.,1972
3. On superconvergence techniques;Krizek;Acta Appl. Math.,1987
4. Superconvergence Theory of the Finite Element Methods;Zhu,1989
5. Superconvergence in Galerkin Finite Element Methods;Wahlbin,1995