Lunn, Peter D., and David Duffy. “Are Perceptions of Greatness Accurate? A Statistical Analysis of Brian O’Driscoll’s Contribution to the Irish Rugby Team”. The Economic and Social Review, vol. 48, no. 1, Spring, Mar. 2017, pp. 85-107, https://diamondirelandpress.ie/index.php/esr/article/view/677.