Montgomery, D. C., Peck, E. A., and Vining, G. G. Introduction to linear regression analysis. Wiley Publishing, Hokoben. 2012.
Renaud, O. and Victoria-Feser, M. P. A robust coefficient of determination for regression. Journal of Statistical Planning and Inference, 140. 1852-1862. 2010.
18.191.62.122