We are very happy to announce that two long-term HEAL affiliates from the Institute for Production and Logistics Management at the Johannes Kepler University Linz have successfully defended their PhD theses. The orals were scheduled back to back on Tuesday with many friends and colleagues in the audience. Their individual research areas were:

• Roland Braune: Job Shop Scheduling with Total Weighted Tardiness Objective: Enhancements to Local Search and Bottleneck-based Methods.
• Michael Bögl: Suchraumstrukturanalysen und selbstlernende nachbarschaftsbasierte Suchverfahren am zeitfensterbeschränkten Problem des Handlungsreisenden

In both cases Prof. Zäpfel served as primary PhD supervisor and Michael Affenzeller agreed to be secondary supervisor. Roland and Michael will receive the title Doctor Technicae from the Johannes Kepler University Linz. The whole team congratulates to this success and wishes them all the best for their future careers!