1. Mc Murray W.: Modulation of the chopping trequeney in DC Choppers and PWM inverters having hysteresis controllers. IEEF. Conf., PESC. pp. 295–299. 1983.
2. Holtz. J. Stadtfeld. S: A predictive controller for the stator current vector of AC machines fed from a switehed voltage source. IPEC-conf., Tokyo, 1983.
3. Holtz, J. Stadtfeld S: A PWM inverter drive system with on – line optimised pulse pattems, EPE, conf. pp. 321–325. 1985.
4. A. Acakva. H. Reinold, R. Olesinski: A Simple and self adapting high performance current control scheme for three phase voltage source inverters, IEEE. Conf., IAS. pp.435–442. 1992.
5. H.H. Van der Broeck, H. Ch. Skudelny, G. Stanke: Analysis and realisation of a pulse width modulator based on voltage space vectors, IEEE, IAS, conf., pp. 244–251. 1986.