-, -, حافظ, and محمد. “On Knots Locations for Regression Spline Estimator”. IRAQI JOURNAL OF STATISTICAL SCIENCES 13, no. 2 (June 25, 2025): 17–34. Accessed August 5, 2025. https://rjps.uomosul.edu.iq/index.php/stats/article/view/20851.