PHANG, Michael K.S.; BABYAK, R. Carey. Simplified Solution to Interaction Equation. Engineering Journal, [S. l.], v. 12, n. 1, p. 30–33, 1975. DOI: 10.62913/engj.v12i1.235. Disponível em: https://ej.aisc.org/index.php/engj/article/view/235. Acesso em: 9 oct. 2024.