FEISTEL, Rainer; HELLMUTH, Olaf. Relative Humidity: A Control Valve of the Steam Engine Climate. Journal of Human, Earth, and Future, [S. l.], v. 2, n. 2, p. 140–182, 2021. DOI: 10.28991/HEF-2021-02-02-06. Disponível em: https://hefjournal.org/index.php/HEF/article/view/29. Acesso em: 3 jun. 2025.