Cojocaru, M. G., Thommes, E. W., and Gillies, S: A Model of Residential Mail Delivery by Drones -- Defourny, B. and Tu, S: On the Value of Dual-Firing Power Generation under Uncertain Gas Network Access -- Fasano, G. and Pintér, J. D: Efficient Piecewise Linearization for a Class of Non-convex Optimization Problems: Comparative Results and Extensions -- Fercoq, O. and Richtárik, P: Smooth Minimization of Non-smooth Functions with Parallel Coordinate Descent Methods -- Góez, J. C. and Anjos, M. F: Second Order Conic Optimization Formulations for Service System Design Problems with Congestion -- Mut, M. and Terlaky, T: The Iteration-Complexity Upper Bound for the Mizuno-Todd-Ye Predictor-Corrector Algorithm is Tight -- Pirhooshyaran, M. and Snyder, L. V: Optimization of Inventory and Distribution for Hip and Knee Joint Replacements via Multistage Stochastic Programming -- Takáč, M., Ahipaşaoğlu, S. D., Cheung, N., and Richtárik, P: TopSpin: TOPic discovery via Sparse Principal component Interference -- Wang, F.: Exact Optimal Solution to Nonseparable Concave Quadratic Integer Programming Problems.