1. Ceccanti, F., E. Dini, X. De kestelier, V. Colla and L. Pambaguian. 2010. 3D Printing Technology for a Moon Outpost Exploiting Lunar Soil. Proceedings of the 61st International Astronautical Congress (Prague, CZ, 2010), IAC-10-D3.3.5, 9 pp. http://esmat.esa.int/Publications/Published_papers/IAC-10-D3.3.5.pdf . Accessed 27 February 2013.
2. De Berg, M., M. Van kreveld, M. Overmars, and O. Schwarzkopf. 2000. Computational Geometry. Heidelberg: Springer
3. Do Carmo, M. 1976. Differential Geometry of Curves and Surfaces. Prentice Hall.
4. Sullivan, J.M. 2005. The Aesthetic Value of Optimal Geometry. Pp. 547–563 in The Visual Mind II, Michele Emmer, ed. Cambridge, MA: MIT Press.