DE OLIVEIRA, C. R.; VERRI, A. A. Mild singular potentials as effective Laplacians in narrow strips. MATHEMATICA SCANDINAVICA, [S. l.], v. 120, n. 1, p. 145–160, 2017. DOI: 10.7146/math.scand.a-25510. Disponível em: https://www.mscand.dk/article/view/25510. Acesso em: 23 apr. 2024.