1. Agarwal, V., & Naik, N. Y. (2004). Risks and portfolio decisions involving hedge funds. The Review of Financial Studies, 17(1), 63–98.
2. Alexopoulos, E. C. (2010). Introduction to multivariate regression analysis. Hippokratia, 14(Suppl 1), 23.
3. Aris, R. (1994). Mathematical modelling techniques. Courier Corporation.
4. Babyak, M. A. (2004). What you see may not be what you get: a brief, nontechnical introduction to overfitting in regression-type models. Psychosomatic Medicine, 66(3), 411–421.
5. Belsley, D. A. (2014). Conditioning diagnostics. Wiley.