MEMFORD, Lewis. Rise and Fall of Megalopolis. Problemos, [S. l.], v. 43, p. 63–76, 1990. DOI: 10.15388/Problemos.1990.43.7096. Disponível em: https://test.zurnalai.vu.lt/problemos/article/view/7096. Acesso em: 26 oct. 2025.