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Return, risk, and yield : evidence from ex ante data
Ang, James S., (1985)
Differencing interval and autocorrelation effects on portfolio diversification : additive versus multiplicative assumptions
Chen, Son-Nan, (1982)
Ridge regression and the multicollinearity problem in financial research : a case study
Marquette, R. Penny, (1980)
Energie en superramp
Dekker, P. G., (1980)