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. 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)
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)
K. Haag, L. Kamps, A. Mader, M. Markowis, L. Teuber, and B. See. Bionik: Patente aus der Natur – 4. Bremer Bionik Kongress 2008, page 261-265. Gesellschaft für Technische Biologie & Bionik (GTBB) e.V, (2009)
j. Knippers, M. Hwash, and F. Saad. Fourth International Conference on FRP Composites in Civil Engineering (CICE2008), Zurich, Switzerland, (22-24 July 2008)
C. Ludwig, J. Knippers, E. Hugi, and K. Wakili. Fourth International Conference on FRP Composites in Civil Engineering (CICE2008), Zürich, (22-24 July 2008)
J. Knippers. The Fifth Middle East Symposium on Structural Composites for Infrastructure Applications – Extend Abstract, page 110 – 111. Cairo, The Egyptian Society of Engineers, (2008)
C. Ludwig, J. Knippers, E. Hugi, and K. Wakili. The Fifth Middle East Symposium on Structural Composites for Infrastructure Applications – Extend Abstract, page 136 – 137. Cairo, The Egyptian Society of Engineers, (2008)