1. H.J. Blaß, I. Bejtka, Reinforcements perpendicular to grain using self-tapping screws, in: Proceedings of the 8th World Conference on Timber Engineering, Lahti, Finland, 2004, pp. 233–238.
2. I. Bejtka, H.J. Blaß, Self-tapping screws as reinforcements in beam supports, in: Proceedings of the 39th CIB-W18 Meeting Florence, Italy, 2006.
3. H.J. Blaß, M. Schmid, Self-tapping screws as reinforcement perpendicular to the grain in timber connections, in: Proceedings of RILEM Symposium: Joints in Timber Structures, Stuttgart, Germany, 2001, pp. 163–172.
4. F. Lam, M. Schulte-Wrede, C.C. Yao, J.J. Gu, Moment resistance of bolted timber connections with perpendicular to grain reinforcements, in: Proceedings of the 10th World Conference on Timber Engineering, Miyazaki, Japan, 2008, pp. 978–985.
5. I. Bejtka, H.J. Blaß, Joints with inclined screws, in: Proceedings of the 35th CIB-W18 Meeting Kyoto, Japan, 2002.