M. Gil Pérez, N. Dambrosio, B. Rongen, A. Menges, and J. Knippers. Proceedings of IASS Annual Symposia 2019: Form and Force, 2019, page 1381--1388. International Association for Shell and Spatial Structures (IASS), (2019)
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)