SOBERÓN-MORA, José Antonio et al.
 Urban labor mobility and Covid -19: the cases of three  metropolitan areas of Mexico.
<strong>Papeles de Población</strong>, [S.l.], v. 27, n. 107, p. 221-242, apr. 2021.
ISSN 2448-7147.
Available at: &lt;<a href="https://rppoblacion.uaemex.mx/article/view/15912" target="_new">https://rppoblacion.uaemex.mx/article/view/15912</a>&gt;. Date accessed: 21 aug. 2026.