FROSINI, B. V. Aggregate units, within-group inequality and the decomposition of inequality measures. Statistica, [S. l.], v. 49, n. 3, p. 349–369, 1989. DOI: 10.6092/issn.1973-2201/800. Disponível em: https://rivista-statistica.unibo.it/article/view/800. Acesso em: 4 may. 2024.