N KNUDSEN, M. C. L. Madsen: Thermo - geographical studies, general exposition of the analytical method applied to researches on temperature and climate. Geografisk Tidsskrift - Danish Journal of Geography, [S. l.], v. 14, 1898. Disponível em: https://tidsskrift.dk/geografisktidsskrift/article/view/49116. Acesso em: 16 aug. 2024.