CHUNG, L. O. Manifolds carrying bounded quasiharmonic but no bounded harmonic functions. MATHEMATICA SCANDINAVICA, [S. l.], v. 37, p. 264–270, 1975. DOI: 10.7146/math.scand.a-11605. Disponível em: https://www.mscand.dk/article/view/11605. Acesso em: 2 may. 2024.