LAUX, H.-D. Structural and regional differences of natural population growth in German cities, 1880-1905. ERDKUNDE, [S. l.], v. 37, n. 1, p. 22–33, 1983. DOI: 10.3112/erdkunde.1983.01.03. Disponível em: https://journals-test.ulb.uni-bonn.de/index.php/erdkunde/article/view/1997. Acesso em: 8 oct. 2024.