↑ Schönung, A.; Stemmler, H. (tháng 8 năm 1964). “Geregelter Drehstrom-Umkehrantrieb mit gesteuertem Umrichter nach dem Unterschwingungsverfahren”. BBC Mitteilungen (Brown Boveri et Cie) 51 (8/9): 555–577.
↑ Fundamentals of HVAC Control Systems, by Robert McDowall, p. 21
↑ Hausmair, Katharina; Shuli Chi; Peter Singerl; Christian Vogel (tháng 2 năm 2013). “Aliasing-Free Digital Pulse-Width Modulation for Burst-Mode RF Transmitters”. IEEE Transactions on Circuits and Systems I: Regular Papers 60 (2): 415–427. doi:10.1109/TCSI.2012.2215776.
↑ J. Huang, K. Padmanabhan, and O. M. Collins, “The sampling theorem with constant amplitude variable width pulses”, IEEE transactions on Circuits and Systems, vol. 58, pp. 1178 - 1190, June 2011.
↑ Sampling: What Nyquist Didn’t Say, and What toDo About It - Tim Wescott, Wescott Design Services.
↑ Hirak Patangia, Sri Nikhil Gupta Gourisetti, "A Harmonically Superior Modulator with Wide Baseband and Real-Time Tunability", IEEE International Symposium on Electronic Design (ISED), India, Dec.11.
↑ Hirak Patangia, Sri Nikhil Gupta Gourisetti, “Real Time Harmonic Elimination Using a Modified Carrier”, CONIELECOMP, Mexico, Feb 2012.
↑ Hirak Patangia, Sri Nikhil Gupta Gourisetti, “A Novel Strategy for Selective Harmonic Elimination Based on a Sine-Sine PWM Model”, MWSCAS, U.S.A, Aug 2012.
