July 20, 2022July 18, 2022 Mark Bell, ‘One on One with Ed Coan’, Power Magazine, 1, no. 1 (2009), 28-31.
March 18, 2022March 11, 2022 Doug Daniels, ‘BENCH PRESS VARIATIONS,’ Powerlifting USA, 33. 10 (2010), 14
December 7, 2020November 12, 2020 Anthony Ditillo, ‘The Single and Double Progression Method’, The Development of Physical Strength (Wm F. Hinbern, 1982).
