STAPLES, S. G. Lp-averaging domains and the Poincaré inequality. Annales Fennici Mathematici, [S. l.], v. 14, n. 1, p. 103–127, 1989. DOI: 10.5186/aasfm.1989.1429. Disponível em: https://afm.journal.fi/article/view/134650. Acesso em: 4 may. 2024.