Trzęsiok, Joanna. “Outliers Vs Robustness in Nonparametric Methods of Regression”. Acta Universitatis Lodziensis. Folia Oeconomica 4, no. 337 (September 20, 2018): 99–109. Accessed April 28, 2024. https://www.czasopisma.uni.lodz.pl/foe/article/view/985.