J. Knippers. The Fourth Middle East Symposium on Structural Composites for Infrastructure Applications., page 48 – 53. Kairo, Ägypten, Egytian Society of Engineers, (2005)
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)
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. Fourth International Conference on FRP Composites in Civil Engineering (CICE2008), Zürich, (22-24 July 2008)