FERRETTI, C. Sampling properties of the directional mobility index and the income of Italian families. Statistica, [S. l.], v. 74, n. 4, p. 455–466, 2014. DOI: 10.6092/issn.1973-2201/5210. Disponível em: https://rivista-statistica.unibo.it/article/view/5210. Acesso em: 29 apr. 2024.