1. Vandenginste B. G. M.; Massart, D. L.; Buydens, L. M. C.; de Jong, S.; Lewi, P. J.; Smeyers-Verbeke J.Handbook of Chemometrics andQualimetrics B; Elsevier: Amsterdam, 1998.
2. Martens, H.; Naes, T.Multivariate Calibration; Wiley: New York, 1993.
3. Multivariate peak purity approaches