1. Kernbach, S.: From Robot Swarm to Artificial Organisms: Self-organization of Structures, Adaptivity and Self-development. In: Levi, P., Kernbach, S. (eds.) Symbiotic Multi-Robot Organisms - Reliability, Adaptability, Evolution, ch. 1. Springer, Heidelberg (2010)
2. Parker, L.E., Balch, T.: Robot Teams: From Diversity to Polymorphism. A.K. Peters Ltd. (2002)
3. Konstantinov, L.: The Basics of Gas and Heat Airship Theory. AEROPLAST Journal (2005),
http://www.agaeroplast.com
4. Balaskovic, P.,
http://balaskovic.pagesperso-orange.fr/ballons-et-dirigeables.html
5. Wyrsch, N., et al.: Ultra-Light Amorphous Silicon Cell for Space Applications. In: 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, Waikoloa (2006)