WILLIAMS, Colin C.; HORODNIC, Ioana Alexandra. Tackling the participation of Europe’s rural population in the shadow economy. AGER. Revista de Estudios sobre Despoblación y Desarrollo Rural, [S. l.], v. 22, p. 7–33, 2017. Disponível em: https://recyt.fecyt.es/index.php/AGER/article/view/58837. Acesso em: 11 ene. 2026.