1. Four levels of pattern recognition;Albano;Anal. Chim. Acta,1978
2. Multivariate Data Analysis;Cooley,1971
3. Statistics and Data Analysis in Geology;Davis,1986
4. Experimental Design: A Chemometric Approach;Deming,1987
5. Applied pattern recognition: what to do with data after the measurements have been made;Erickson,1980