CHUNG, Lung Ock. 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://tidsskrift.dk/math/article/view/11605. Acesso em: 14 aug. 2026.