Chiodini, Paola Maddalena, and Silvia Facchinetti. “On a Test of Hypothesis to Verify the Operating Risk Due to Accountancy Errors”. Statistica 74, no. 1 (January 1, 2014): 45–64. Accessed May 17, 2022. https://rivista-statistica.unibo.it/article/view/4597.