Young, Warren, Newton, Robert, Doyle, Tim, Chapman, Dale, Cormack, Stuart, Stewart, Glenn, Dawson, Brian. Sports Medicine Australia; 2005. Physiological and anthropometric characteristics of starters and non-starters and playing positions in elite Australian Rules football : A case study.
Sheppard, Jeremy, Young, Warren, Doyle, Tim, Sheppard, T. A., Newton, Robert. Elsevier; 2006. An evaluation of a new test of reactive agility and its relationship to sprint speed and change of direction speed.