LUOR, D.-C. On the equivalence of boundedness for multiple Hardy-Littlewood averages and related operators. MATHEMATICA SCANDINAVICA, [S. l.], v. 123, n. 2, p. 273–296, 2018. DOI: 10.7146/math.scand.a-105662. Disponível em: https://www.mscand.dk/article/view/105662. Acesso em: 4 dec. 2024.