1. ‘An electromechanical preliminary design of a 500 kW, 25 000 rpm generator’, Interim report of the NOVEM project, EMV 93–10, 1993 in Dutch
2. ‘Perspectives of a high speed generator for a 1400 kW gas turbine’, Interim report of the NOVEM project, 1994 in Dutch
3. Kostenko, M., and Piotrovsky, L.: ‘Electrical machines’, (MIR Publishers Moscow 1973),2,