• Jaffe, Paul; Nugent, Tom; Strassner, Bernd II; Szazynski, Mitchel (2024). Power Beaming: History, Theory, and Practice. World Scientific.• de Rooij, Michael A. (2015). Power Conversion Publications. Latest work on AirFuel Alliance class 2 and class 3 transmitters, adaptive tuning, radiated EMI, multi-mode wireless power systems, and control strategies.