MAGNUS, R.; MOSCHETTA, O. Non-degeneracy of perturbed solutions of semilinear partial differential equations. Annales Fennici Mathematici, [S. l.], v. 35, n. 1, p. 75–86, 2010. DOI: 10.5186/aasfm.2010.3505. Disponível em: https://afm.journal.fi/article/view/135295. Acesso em: 25 nov. 2024.