1. P. Knupp, Hexahedral mesh untangling and algebraic mesh quality metrics, in: Proc. of the Ninth International Meshing Roundtable, Sandia National Laboratories, 2000, pp. 173–183.
2. P. Phillippe, T. Baker, A comparison of triangle quality measures, in: Proc. of the Tenth International Meshing Roundtable, Sandia National Laboratories, 2001, pp. 327–340.
3. Algebraic mesh quality metrics;Knupp;SIAM J. Sci. Comput.,2001
4. On the angle condition in the finite element method;Babuska;SIAM J. Numer. Anal.,1976
5. Condition of finite element matrices generated from nonuniform meshes;Fried;AIAA Journal,1972