Chapter 12: Computational results for validation of nominations. - Jesco Humpola; Thomas Lehmann 003; Ralf Lenz; Antonio Morsi; Martin Schmidt 003; Robert Schwarz; Jonas Schweiger; Claudia Stangl; Bernhard M. Willert; Benjamin Hiller; Marc E. Pfetsch; Lars Schewe (Evaluating Gas Network Capacities, 2015)

Chapter 7: The specialized MINLP approach. - Jesco Humpola; Armin Fügenschuh; Thomas Lehmann 003; Ralf Lenz; Robert Schwarz; Jonas Schweiger; Benjamin Hiller; Thorsten Koch (Evaluating Gas Network Capacities, 2015)

Tight Convex Relaxations for the Expansion Planning Problem. - Ralf Lenz; Felipe Serrano 001 (J. Optim. Theory Appl., 2022)

Optimization of capacity expansion in potential-driven networks including multiple looping: a comparison of modelling approaches. - Ralf Lenz; Kai Helge Becker (OR Spectr., 2022)

Scheduling of parallel continuous annealing lines with alternative processing modes to optimize efficiency under tardiness constraints. - Sebastian Wegel; Anton Ivanov; Ralf Lenz; Thomas Volling (Eur. J. Oper. Res., 2024)