HERMANN, Martin; ULLMANN, Thomas; ULLRICH, Klaus. The Nonlinear Buckling Problem of a Spherical Shell: Bifurcation Phenomena in a BVP with a Regular Singularity. Technische Mechanik - European Journal of Engineering Mechanics, [S. l.], v. 12, n. 3, p. 177–184, 2019. Disponível em: https://journals.ub.ovgu.de/index.php/techmech/article/view/1349. Acesso em: 5 may. 2024.