Ivrissimtzis, Ioannis Computer Graphics, MPI for Informatics, Max Planck Society;
Dodgson, N., Ivrissimtzis, I., & Sabin, M. (2003). Characteristics of dual-sqrt(3) subdivision schemes. In Curve and Surface Fitting: Saint-Malo 2002 (pp. 119-128). Brentwood, USA: Nashboro Press.