J. Lienhard, and J. Knippers. Conference Proceedings of the International BIONA-Symposium: Biomimetics in Architecture: Evolutionary constructions and design, page 15. ITKE, Universität Stuttgart, (November 2009)
J. Lienhard, and J. Knippers. Conference Proceedings of the International BIONA-Symposium: Biomimetics in Architecture: Evolutionary constructions and design, page 15. ITKE, Universität Stuttgart, (November 2009)