Werner, U. “Influence of Electromagnetic Field Damping on the Vibration Stability of Soft Mounted Induction Motors With Sleeve Bearings, Based on a Multibody Model”. Technische Mechanik - European Journal of Engineering Mechanics, vol. 37, no. 2-5, June 2019, pp. 239-4, doi:10.24352/UB.OVGU-2017-100.