Brommundt, E. “High-Order Sub-Harmonic Synchronisation in a Rotor System With a Gear Coupling”. Technische Mechanik - European Journal of Engineering Mechanics 24, no. 3-4 (August 7, 2019): 242–253. Accessed February 2, 2026. https://journals.ub.ovgu.de/index.php/techmech/article/view/926.