Conniffe, D. (1997). Geary's Use of the Von Neumann Ratio for Testing Regression Specification, Denis Conniffe (Ed.), Roy Geary, 1896-1983: Irish Statistician - Centenary Lecture by John E. Spencer and Associated Press, Dublin: Oak Tree Press in association with ESRI, https://www.esri.ie/publications/gearys-use-of-the-von-neumann-ratio-for-testing-regression-specification