1. R.J. Pond, Fundamentals of Statistical Quality Control, Prentice-Hall, Inc., New York, 1994
2. J. Edward Jackson, A User's Guide to Principal Components, Wiley, New York, 1991
3. Multivariate spc charts for monitoring batch processes;Nomikos;Technometrics,1995
4. P. Nomikos, Statistical Process Control of Batch Processes, Ph.D. Thesis, McMaster University, 1995
5. A. Höskuldsson, Regression Methods in Science and Technology, vol. 1, Thor Publishing, Arnegaards Allé 7, Denmark, 1996