Collum, C., R. Snarr, N. Siekirk, and S. Wilson. “Effects of Attentional Focus on Repetitions-to-Failure & Motor Unit Excitation During Submaximal Bench Press Performance”. International Journal of Strength and Conditioning, Vol. 1, no. 1, Feb. 2021, doi:10.47206/ijsc.v1i1.35.