1. Thomas Ottmann. Bäume in der informatik. Technical Report 13, Institut für Informatik, Universität Freiburg, June 1988.
2. Lect Notes Comput Sci;T. Ottmann,1991
3. Alois P. Heinz. A tree-structured neural network for real-time adaptive control. In S. Amari, L. Xu, L.-W. Chan, I. King, and K.-S. Leung, editors, Progress in Neural Information Pro-cessing, Proceedings of the International Conference on Neural Information Processing, Hong Kong, volume 2, pages 926–931, Berlin, September 1996. Springer.
4. J. C. Burkill and H. Burkill. A Second Course in Mathematical Analysis. Cambridge University Press, Cambridge, England, 1970.
5. Alois P. Heinz. On a class of constructible neural networks. In Françoise Fogelman-Soulié and Patrick Gallinari, editors, ICANN’ 95, Proceedings of the International Conference on Artificial Neural Networks, Paris, France, volume 1, pages 563–568, Paris La Défense, France, October 1995. EC2 & Cie.