AKRAM, SARAH SABAH AKRAM; TALIB, Hayder; FAYYADH , NOOR ABDUL-KAREEM FAYYADH. A Robust Cubic Spline Approach for Hierarchical Regression Models with Outliers. Statistics, Optimization & Information Computing, [S. l.], v. 16, n. 1, p. 103–115, 2026. DOI: 10.19139/soic-2310-5070-3633. Disponível em: https://iapress.org/index.php/soic/article/view/3633. Acesso em: 13 jun. 2026.