1. Transformations for the computer detection of curves in noisy pictures;Shapiro,1975
2. Use of the Hough transformation to detect lines and curves in pictures;Duda;Comm. ACM,1972
3. Pattern Recognition and Scene Analysis;Duda,1973
4. S.D. Shapiro, Feature space transforms for curve detection, Pattern Recognition, to appear.
5. On the Hough technique for curve detection, private correspondence;Sklansky,1977