CHEN, Yanping; DING, Yong. A charaterization of commutators for parabolic singular integrals. MATHEMATICA SCANDINAVICA, [S. l.], v. 108, n. 1, p. 5–25, 2011. DOI: 10.7146/math.scand.a-15158. Disponível em: https://tidsskrift.dk/math/article/view/15158. Acesso em: 13 aug. 2026.