BARNA, Róbert; SUGÁR, László. Introduction of an age group population dinamic model. Acta Agraria Kaposváriensis, [S. l.], v. 10, n. 3, p. 241–254, 2006. Disponível em: https://journal.uni-mate.hu/index.php/aak/article/view/1847. Acesso em: 5 dec. 2025.