RIMROTT, F. P. J. Georg Duffing (1861 - 1944). Technische Mechanik - European Journal of Engineering Mechanics, [S. l.], v. 14, n. 1, p. 77–82, 2019. Disponível em: https://journals.ub.ovgu.de/index.php/techmech/article/view/1285. Acesso em: 13 may. 2024.