j. Knippers, M. Hwash, and F. Saad. Fourth International Conference on FRP Composites in Civil Engineering (CICE2008), Zurich, Switzerland, (22-24 July 2008)
J. Li, and J. Knippers. Proceedings of the International Symposium of the IASS-APCS Symposium, Seoul, Korea, International Association of Shells and Sapatial Structures, (21-24 May 2012)
C. Ludwig, J. Knippers, E. Hugi, and K. Wakili. Fourth International Conference on FRP Composites in Civil Engineering (CICE2008), Zürich, (22-24 July 2008)
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)