The last decades have seen a considerable move forward regarding integrated vehicle and crew scheduling in various realms (airline industry, public transport). With the continuous improvement of information and communication technology as well as general solvers it has become possible to...

On the occasion of the 65th birthday of Prof. Dr. Rudolf Vetschera, colleagues from all over the world contributed their works in order to compile an issue that is meant as a tribute to his achievements, wisdom, and kindness.

We present an algorithm to solve capacity extension problems that frequently occur in energy system optimization models. Such models describe a system where certain components can be installed to reduce future costs and achieve carbon reduction goals; however, the choice of these components...