POLIAKOVSKY, A. Sharp upper bounds for a singular perturbation problem related to micromagnetics. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 6, n. 4, p. 673-701, 2009. DOI: 10.2422/2036-2145.2007.4.08. Disponível em: https://journals.sns.it/index.php/annaliscienze/article/view/141. Acesso em: 20 feb. 2026.