A two-step method for forecasting spare parts demand using information on component repairs. - Ward Romeijnders; Ruud H. Teunter; Willem van Jaarsveld (Eur. J. Oper. Res., 2012)

Cost benefits of postponing time-based maintenance under lifetime distribution uncertainty. - Bram de Jonge; Arjan S. Dijkstra; Ward Romeijnders (Reliab. Eng. Syst. Saf., 2015)

Convex Approximations for Totally Unimodular Integer Recourse Models: A Uniform Error Bound. - Ward Romeijnders; Maarten H. van der Vlerk; Willem K. Klein Haneveld (SIAM J. Optim., 2015)

Total variation bounds on the expectation of periodic functions with applications to recourse approximations. - Ward Romeijnders; Maarten H. van der Vlerk; Willem K. Klein Haneveld (Math. Program., 2016)

A Convex Approximation for Two-Stage Mixed-Integer Recourse Models with a Uniform Error Bound. - Ward Romeijnders; Rüdiger Schultz; Maarten H. van der Vlerk; Willem K. Klein Haneveld (SIAM J. Optim., 2016)

Assessing the Quality of Convex Approximations for Two-Stage Totally Unimodular Integer Recourse Models. - Ward Romeijnders; David P. Morton; Maarten H. van der Vlerk (INFORMS J. Comput., 2017)

Higher-order total variation bounds for expectations of periodic functions and simple integer recourse approximations. - Niels van der Laan; Ward Romeijnders; Maarten H. van der Vlerk (Comput. Manag. Sci., 2018)

The stochastic programming heritage of Maarten van der Vlerk. - David P. Morton; Ward Romeijnders; Rüdiger Schultz; Leen Stougie (Comput. Manag. Sci., 2018)

An approximation framework for two-stage ambiguous stochastic integer programs under mean-MAD information. - Krzysztof Postek; Ward Romeijnders; Dick den Hertog; Maarten H. van der Vlerk (Eur. J. Oper. Res., 2019)

Pseudo-Valid Cutting Planes for Two-Stage Mixed-Integer Stochastic Programs with Right-Hand-Side Uncertainty. - Ward Romeijnders; Niels van der Laan (Oper. Res., 2020)

Convex approximations for two-stage mixed-integer mean-risk recourse models with conditional value-at-risk. - E. Ruben van Beesten; Ward Romeijnders (Math. Program., 2020)

Piecewise Constant Decision Rules via Branch-and-Bound Based Scenario Detection for Integer Adjustable Robust Optimization. - Ward Romeijnders; Krzysztof Postek (INFORMS J. Comput., 2021)

A loose Benders decomposition algorithm for approximating two-stage mixed-integer recourse models. - Niels van der Laan; Ward Romeijnders (Math. Program., 2021)

A Compact Arc-Based ILP Formulation for the Pickup and Delivery Problem with Divisible Pickups and Deliveries. - Bolor Jargalsaikhan; Ward Romeijnders; Kees Jan Roodbergen (Transp. Sci., 2021)

Parametric error bounds for convex approximations of two-stage mixed-integer recourse models with a random second-stage cost vector. - E. Ruben van Beesten; Ward Romeijnders (Oper. Res. Lett., 2022)

A Converging Benders' Decomposition Algorithm for Two-Stage Mixed-Integer Recourse Models. - Niels van der Laan; Ward Romeijnders (Oper. Res., 2024)

On Proportionally Consistent Solutions to the Divorced-Parents Problem. - Ward Romeijnders; Nicky D. van Foreest; Jacob Wijngaard (Oper. Res., 2024)

Pragmatic Distributionally Robust Optimization for Simple Integer Recourse Models. - E. Ruben van Beesten; Ward Romeijnders; David P. Morton (SIAM J. Optim., 2024)

Convex approximations of two-stage risk-averse mixed-integer recourse models. - E. Ruben van Beesten; Ward Romeijnders; Kees Jan Roodbergen (Comput. Optim. Appl., 2024)