RIMROTT, F. P. J.; TABARROK, B. Complementary Formulation of the Appell Equation. Technische Mechanik - European Journal of Engineering Mechanics, [S. l.], v. 16, n. 2, p. 187–196, 2019. Disponível em: https://journals.ub.ovgu.de/index.php/techmech/article/view/1231. Acesso em: 15 may. 2024.