1. Electrical aspects of variable speed operation of horizontal axis wind turbine generators. W/33/00221/REP, ETSU, Harwell, 1994.
2. Control of variable speed wind turbines below-rated wind speed. In Proceedings of the 3rd ASME/JSME Conference, California, 1999. ASME/JSME, 1999.
3. Reduction of fatigue loads on wind energy converters by advanced control methods. In Proceedings of the European Wind Energy Conference, Dublin, October 1997, (ed). Irish Wind Energy Assoc.: Slane, co Meath, EIRE, EWEA, 1997; 555-558.
4. Adaptive pitch control for a 250 kW wind turbine. In Proceedings of the 9th BWEA Conference, Edinburgh, 1987, (ed). Mechanical Engineering Publications: London, 1987; 85-92.