1. “The 2030 Challenge: Why the Building Sector?”, accessed December 15, 2015, http://architecture2030.org/buildings_problem_why/.
2. “The 2030 Challenge for Products”, accessed December 15, 2015, http://architecture2030.org/2030_challenges/products/.
3. “COTE Definition and Measures of Sustainable Design”, accessed December 15, 2015, http://www.aia.org/practicing/groups/kc/AIAS077365.
4. Motro, René. “Robert Le Ricolais (1894-1977) “Father of Spatial Structures“.” International Journal of Space Structures 22, no. 4 (2007): 233-38.
5. Bendsøe, Martin P., and O. Sigmund. Topology Optimization: Theory, Methods, and Applications. Berlin: Springer, 2003.