VICARIO, G.; BARBATO, G.; BRONDINO, G. An application of the asymptotic theory to a threshold model for the estimate of Martens Hardness. Statistica, [S. l.], v. 62, n. 4, p. 733–744, 2002. DOI: 10.6092/issn.1973-2201/437. Disponível em: https://rivista-statistica.unibo.it/article/view/437. Acesso em: 27 oct. 2021.