Tiago de Oliveira, J. “Efficiency Evaluation for Quasi-Linear Invariant Predictors”. JORBEL - Belgian Journal of Operations Research, Statistics, and Computer Science 9, no. 1 (September 1, 1968): 3–11. Accessed May 2, 2024. https://www.orbel.be/jorbel/index.php/jorbel/article/view/117.