HENROT, A.; ZUCCO, D. Optimizing the first Dirichlet eigenvalue of the Laplacian with an obstacle. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 19, n. 4, p. 1535-1559, 2019. DOI: 10.2422/2036-2145.201702_003. Disponível em: http://20.103.181.36/index.php/annaliscienze/article/view/670. Acesso em: 27 may. 2025.