Geometric Brownian motion and a new approach to the spread of Covid-19 in Italy. Gulf Journal of Mathematics, [S. l.], v. 10, n. 2, p. 25–30, 2021. DOI: 10.56947/gjom.v10i2.516. Disponível em: https://gjom.org/index.php/gjom/article/view/516. Acesso em: 25 aug. 2026.