References

Jackson, J. E. (1981), "Principal Components and Factor Analysis: Part III---What Is Factor Analysis?" Journal of Quality Technology , 13(2), 125--130. 

Jackson, J. E. (1991), A User's Guide to Principal Components , New York: John Wiley & Sons. 

Kaiser, H. F. (1970), "A Second Generation Little Jiffy," Psychometrika , 35, 401--415. 

Wickens, T. D. (1995), The Geometry of Multivariate Statistics , Hillsdale, NJ: Lawrence Erlbaum Associates.