HERZEL, A. Estimation of variance of sample variance in sample random sampling. Statistica, [S. l.], v. 45, n. 2, p. 153–180, 1985. DOI: 10.6092/issn.1973-2201/676. Disponível em: https://rivista-statistica.unibo.it/article/view/676. Acesso em: 2 dec. 2021.