RAUSCH, J. M. Does the concept of frontier still have validity for the study of the history of the Llanos in the 21st century?. Borders Magazine of History, [S. l.], v. 15, n. 1, p. 157–179, 2010. Disponível em: https://revistas.icanh.gov.co/index.php/fh/article/view/415. Acesso em: 3 jul. 2024.