1. Duda, O.R., Hart, P.E., Stork, D.G.: Pattern Classification. Wiley, New York (2001)
2. Bishop C.M.: Pattern Recognition and Machine Learning. Springer, Cham (2006)
3. Kuncheva, L.: Combining Pattern Classifiers: Methods and Algorithms, 2nd edn. J. Wiley, New Jersey (2014)
4. Johnson, R.A., Wichern, D.W.: Applied Multivariate Statistical Analysis. Prentice- Hall Inc., Englewood Cliffs (2002)
5. Jolliffe, I.T.: Principal Component Analysis. Springer, NY (2002)