1. Multivariate adaptive regression (MARS) and hinged hyperplanes (HHP) for doweled pavement performance modeling
2. D.L. Banks, R.T. Olszewski, and R.A. Maxion, Comparing methods for multivariate nonparametric regression, CMU-CS-99-102 School of Computer Science, Carnegie Mellon University, Pitsburg, 1999.
3. A. Beck and M. Teboulle, Gradient based algorithms with applications in signal recovery problems in convex optimization in signal processing and communications, in D.P. Palomar and Y.C. Eldar, eds. Cambridge University Press, New York, 2009, pp. 33–38.
4. Global Optimality Conditions for Quadratic Optimization Problems with Binary Constraints