JÄRVENPÄÄ, E.; JÄRVENPÄÄ, M.; KÄENMÄKI, A.; SUOMALA, V. Asymptotically sharp dimension estimates for $k$-porous sets. MATHEMATICA SCANDINAVICA, [S. l.], v. 97, n. 2, p. 309–318, 2005. DOI: 10.7146/math.scand.a-14978. Disponível em: https://tidsskrift.dk/math/article/view/14978. Acesso em: 14 aug. 2026.