1. Alexander C (1964) Notes on the synthesis of form. Harvard University Press, Cambridge, Massachusetts
2. Kepes G (1965) Structure in art and science, 4th edn. George Brazieller
3. Pottmann H, Brell-Cokcan S, Wallner J (2006) Discrete surfaces for architectural design. Curves and surfaces: Avignon 2006, pp 213–234
4. Pottmann H, Brell-Cokcan S, Wallner J (2006) Discrete surfaces for architectural design. In: Chenin P, Lyche T, Schumaker LL (eds) Curves and surface design: Avignon 2006. Nashboro Press, pp 213–234
5. Liu Y, Wang W (2009) A note on planar hexagonal meshes. In: Nonlinear computational geometry. Springer, pp 221–233