BREUNING MADSEN, H. Human activity and environmental processes. Ed. by K. J. Gregory and D. E. Walling. Geografisk Tidsskrift - Danish Journal of Geography, [S. l.], v. 88, 1988. Disponível em: https://tidsskrift.dk/geografisktidsskrift/article/view/44586. Acesso em: 17 jul. 2024.