Unified sensorless vector control of synchronous and induction motors. - Lennart Harnefors; Magnus Jansson; Rolf Ottersten; Kai Pietiläinen (IEEE Trans. Ind. Electron., 2003)

Regenerating-Mode Stabilization of the "Statically Compensated Voltage Model". - Lennart Harnefors; Rolf Ottersten (IEEE Trans. Ind. Electron., 2007)