NIELSEN, R. W. Unified Growth Theory Contradicted by the Mathematical Analysis of the Historical Growth of Human Population. Journal of Economics and Political Economy, [S. l.], v. 3, n. 2, p. 242–263, 2016. Disponível em: https://journals.econsciences.com/index.php/JEPE/article/view/748. Acesso em: 12 feb. 2026.