1. Ruedenberg R., Elektrische Schaltvorgaenge. Berlin, Heidelberg, New York: Springer, 1974. (In German).
2. Boguslawsky I.Z., A.C. Motors and Generators. The Theory and Investigation Methods by Their Operation in Networks with Non Linear Elements. TU St.Petersburg Edit., 2006. Vol. 1; Vol.2. (In Russian).
3. Schuisky W., Berechnung elektrischer Maschinen. Wien: Springer, 1960. (In German).
4. Demirchyan K.S., Neyman L.R., Korovkin N.V., Theoretical Electrical Engineering. Moscow, St.Petersburg: Piter, 2009. Vol. 1, 2. (In Russian).
5. Kuepfmueller K., Kohn G., Theoretische Elektrotechnik und Elektronik. 15 Aufl., Berlin, New York: Springer. 2000. (In German).