• Stepper motor drive as a control object for teaching microprocessor control of electrical drivesKährik, Rainer; Lehtla, Madis6th International Symposium "Topical Problems in the Field of Electrical and Power Engineering" : Doctoral School of Energy and Geotechnology : [Kuressaare, January 12-17, 2009]2009 / p. 140-143 : ill