ARENDT, W.; TER ELST, A. The Dirichlet-to-Neumann operator on $C(\partial \Omega)$. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 20, n. 3, p. 1169-1196, 2020. DOI: 10.2422/2036-2145.201708_010. Disponível em: http://20.103.181.36/index.php/annaliscienze/article/view/705. Acesso em: 27 may. 2025.