1. D. H. Ballard. Generalizing the hough transform to detect arbitrary shapes. Pattern Recognition, 13(2):111–122, 1981.
2. H. Bässmann and Ph. W. Besslich. Konturorientierte Verfahren in der Bildverarbeitung. Springer Verlag, 1989.
3. B. Besserer, S. Estable, and B. Ulmer. Multiple knowledge sources and evidental reasoning for shape recognition. Proceedings of 4th ICCV, Los Alamitos, CA, pages 624–631, 1993.
4. U. Bücker, H. Austermeier, G. Hartmann, and B. Mertsching. Verkehrssszenenanalyse in hierarchisch codierten Bildern. Mustererkennung 15. DAGM-Symposium, Lübeck, September, 15:694–701, 1993.
5. S. Estable, J. Schick, F. Stein, R. Janssen, R. Ott, W. Ritter, and Y. J. Zheng. A real-time traffic sign recognition system. Proceedings of intelligent vehicle, Paris October, pages 213–218, 1994.