1. Duda, R. and Hart, P. (1973). Pattern Classification and Scene Analysis, Wiley Interscience, NY.
2. Tou, J. T. and Gonzalez, R. (1974). Pattern Recognition Principles, Addison-Wesley, Reading, MA.
3. Devijver, P. and Kittler, J. (1982). Pattern Recognition: A Statistical Approach, Prentice-Hall, Englewood Cliffs, NJ.
4. Pao, Y.H. (1989). Adaptive Pattern Recognition and Neural Networks, Addison-Wesley, Reading, MA
5. Fukunaga, K. (1991). Statistical Pattern Recognition, second edition (first edition, 1972 ), Academic Press, San Diego, CA.