ZGORZELSKA, Anita; GUZE, Hanna. A note on bifurcation of equilibrium forms of a gas baloon parachute. Annales Mathematicae Silesianae, [S. l.], v. 39, n. 2, p. 368–380, 2025. Disponível em: https://journals.us.edu.pl/index.php/AMSIL/article/view/19073. Acesso em: 5 dec. 2025.