Budiantara, I Nyoman, et al. “Model Selection Criteria CV, UBR, and GCV for a Mixed Truncated Spline–Gaussian Kernel Estimator in Health Modeling”. Statistics, Optimization & Information Computing, vol. 16, no. 3, Apr. 2026, pp. 2632-5, doi:10.19139/soic-2310-5070-3472.