1. Reading chess;Baird,1987
2. Optical character recognition by the method of moments;Cash;Computer Vision, Graphics and Image Processing,1987
3. Contour elastic matching for omni-font character recognition;Duffie,1985
4. Communication systems;Haykin,1978
5. On the recognition of printed characters of any font and size;Kahan;IEEE Pattern Analysis and Machine Intelligence,1987