Veltman, Andr़. Fundamentals of Electrical Drives [electronic resource] by Andre Veltman, Duco W J Pulle and Rik W De Doncker - Dordrecht Springer 2007 http://dx.doi.org/10.1007/978-1-4020-5504-1 ISBN: 9781402055041 Dewey Class. No.: 621.3976 / (e-book)