D. Park, and J. Knippers. Conference proceeding of the 9th Asian Pacific Conference on Shell and Spatial Structures (APCS2009), page 147 – 148. Nagoya Japan, (May 2009)
M. Oppe, and J. Knippers. Advanced Composites in Construction 2009 (ACIC 2009) Proceedings of the Fourth International Conference, 495, University of Edinburgh, UK, (1st – 3rd Septembe 2009)
D. Park, J. Knippers, and K. Hwang. Conference proceeding of the 9th Asian Pacific Conference on Shell and Spatial Structures (APCS2009), page 31. Nagoya Japan, (May 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)
J. Knippers, M. Hwash, and F. Saad. 13th International Conference on Structural and Geotechnical Engineering, Cairo – Egypt, Ain Shams University Faculty of Engineering, Department of Structural Engineering, (27-29 Dec. 2009)
K. Hwang, J. Knippers, and S. Park. Evolution and Trends in Design, Analysis and Construction of Shell ans Spatial Structures, IASS Symposium, page 426 – 427. Valencia, Spain, (28. Sept.r – 2. Oct. 2009)
M. Gabler, and J. Knippers. 13th International Conference on Structural and Geotechnical Engineering, Cairo – Egypt, Ain Shams University Faculty of Engineering, Department of Structural Engineering, (27-29 Dec. 2009)