Dorazio, T. F. (25 April 1990). High phase order transmission. Technical Conference on the Southern Tier. Binghamton, NY: IEEE. pp. 31–32. doi:10.1109/STIER.1990.324628.
ieee.org
ieeexplore.ieee.org
The first polyphase system: a look back at two-phase power for AC distribution, IEEE Power and Energy Magazine (Volume: 2, Issue: 2, Mar-Apr 2004) [1]
tdworld.com
Longo, Vito (July 1, 2011). "High-Phase What?". Transmission & Distribution World. Archived from the original on 28 July 2016.
web.archive.org
Longo, Vito (July 1, 2011). "High-Phase What?". Transmission & Distribution World. Archived from the original on 28 July 2016.
