Harwood, P.B. Millermaster, R.A.
Control of electric motors - 4th ed. - New York Wiley Interscience 1970 - 498 p., ill.
Bibly: pp. 493-498
621.313-5 / H3
Control of electric motors - 4th ed. - New York Wiley Interscience 1970 - 498 p., ill.
Bibly: pp. 493-498
621.313-5 / H3