Efficiency Optimization of a 100-W, 500 000-rpm Permanent-Magnet Machine Including Air Friction Losses. - Jorma Luomi; Christof Zwyssig; Andreas Looser; Johann W. Kolar (IAS, 2007)

An Ultrahigh-Speed, Low Power Electrical Drive System. - Christof Zwyssig; Simon D. Round; Johann W. Kolar (IEEE Trans. Ind. Electron., 2008)

Half-Controlled Boost Rectifier for Low-Power High-Speed Permanent-Magnet Generators. - Daniel Krähenbühl; Christof Zwyssig; Johann W. Kolar (IEEE Trans. Ind. Electron., 2011)

A Novel Motor Topology for High-Speed Micro-Machining Applications. - Arda Tüysüz; Christof Zwyssig; Johann W. Kolar (IEEE Trans. Ind. Electron., 2014)

Active Magnetic Damper for Ultrahigh-Speed Permanent-Magnet Machines With Gas Bearings. - Andreas Looser; Arda Tüysüz; Christof Zwyssig; Johann W. Kolar (IEEE Trans. Ind. Electron., 2017)

A 300 000-r/min Magnetically Levitated Reaction Wheel Demonstrator. - Arda Tüysüz; Timon Achtnich; Christof Zwyssig; Johann W. Kolar (IEEE Trans. Ind. Electron., 2019)