KOZÁK, I.; SZEIDL, Gy. Complete Solution for Stresses in Terms of Stress Functions. Part I: Derivation from the Principle of Virtual Work. Technische Mechanik - European Journal of Engineering Mechanics, [S. l.], v. 16, n. 2, p. 147–168, 2019. Disponível em: https://journals.ub.ovgu.de/index.php/techmech/article/view/1228. Acesso em: 5 may. 2024.