KOHLHEPP, Gerd. The Contribution of Leo Waibel to the Knowledge of Agrarian Colonization in Brazil in the 20th Century. Fronteiras - Journal of Social, Technological and Environmental Science, [S. l.], v. 8, n. 3, p. 69–87, 2019. DOI: 10.21664/2238-8869.2019v8i3.p69-87. Disponível em: https://periodicos.unievangelica.edu.br/index.php/fronteiras/article/view/3426. Acesso em: 14 nov. 2026.