J. Schlaich, and J. Knippers. Structural Engineering International - Official Journal of the International Association for Bridge and Structural Engineering, 10 (1):
50 – 53(2000)
M. Gabler, and J. Knippers. Book of Abstracts of the 7th International Conference on FRP Cpomposites in Civil Engineering (CICE 2014), page 332. Vancouver, Canada, (2014)
T. Fildhuth, S. Lippert, and J. Knippers. IASS-ACPS Conference Proceedings, page 165 pp. Seoul, Korea, International Association for Shell and Spatial Structures, (21-24 May 2012)
F. Waimer, M. Gabler, and J. Knippers. Proceedings of the International IASS Symposium, Seoul, Korea, International Association for Shell and Spatial Structures, (2012)