Multivariate Convex Approximation and Least-Norm Convex Data-Smoothing. - Alex Y. D. Siem; Dick den Hertog; Aswin L. Hoffmann (ICCSA (3), 2006)

The effect of transformations on the approximation of univariate (convex) functions with applications to Pareto curves. - Alex Y. D. Siem; Dick den Hertog; Aswin L. Hoffmann (Eur. J. Oper. Res., 2008)

A Method for Approximating Univariate Convex Functions Using Only Function Value Evaluations. - Alex Y. D. Siem; Dick den Hertog; Aswin L. Hoffmann (INFORMS J. Comput., 2011)

Robust Optimization of Dose-Volume Metrics for Prostate HDR-Brachytherapy Incorporating Target and OAR Volume Delineation Uncertainties. - Marleen Balvert; Dick den Hertog; Aswin L. Hoffmann (INFORMS J. Comput., 2019)