1. Aavatsmark, I., Eigestad, G.T., Klausen, R.A., Wheeler, M.F., Yotov, I.: Convergence of a symmetric MPFA method on quadrilateral grids. Comput. Geosci. 11, 333–345 (2007)
2. Benzley, S.E., Perry, E., Merkley, K., Clark, B., Sjaardema, G.: A comparison of all-hexahedral and all-tetrahedral finite element meshes for elastic and elastio-plastic analysis. In: Proceedings of the 4th International Meshing Roundtable, Albuquerque, NM, pp. 179–191 (1995)
3. Bernard, P.E., Remacle, J.F., Kowalski, N., Geuzaine, C.: Frame field smoothness-based approach for hex-dominant meshing. Comput. Aided Des. 72, 78–86 (2016)
4. Blacker, T.D., Stephenson, M.B.: Paving: a new approach to automated quadrilateral mesh generation. Int. J. Numer. Methods Eng. 32, 811–847 (1991)
5. Borouchaki, H., Frey, P.J., George, P.L.: Unstructured triangular-quadrilateral mesh Generation, application to surface meshing. In: Proceedings of 5th International Meshing Roundtable, Pittsburgh, PA, pp. 229–242 (1996)