1. Principles of Invertor Circuits;Bedford,1964
2. Polyphase Induction Motor Performancesand Losses on Nonsinusoidal Voltage Sources;Klingshirn;IEEE Trans, on P.A.S.,1968
3. Predeterminarea pe un calculator analogic a caracteristicilor maşinii sincrone cu poli ???neca???i alimentată de la un comutator electronic;Magureanu;Electrotehnica,1971
4. A General Principle for Brushless Synchronous Machines and its Application in a New Inverter-fed Drive;Chalmers;Proceedings IEE,1972
5. Characteristics of an Adjustable Speed Polyphase Induction Machine;Sabbach;IEEE Trans, on P.A.S,1968