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)