MARAGHINI, M. P. Il fenomeno abachistico a supporto dei cambiamenti socio-economici: Arezzo tra il XIII ed il XVI secolo = The role of the abacus tradition for the economic and social development of the society: evidence from Tuscany (Italy) between XIII and XVI century. Pecvnia : Revista de la Facultad de Ciencias Económicas y Empresariales, Universidad de León, [S. l.], n. 13, p. 25–58, 2011. DOI: 10.18002/pec.v0i13.602. Disponível em: https://revpubli.unileon.es/ojs/index.php/Pecvnia/article/view/602. Acesso em: 18 ago. 2022.