1. Recognising three-dimensional objects by their silhouettes;Slansky,1971
2. Analysis of cells;Ledley;IEEE Trans. Comput. C-21,1972
3. Pattern recognition using autocorrelation;Horwitz,1961
4. Character recognition techniques for address reading;Chatten,1962
5. Some important factors in the practical utilization of optical character readers;Greanias,1962