DAI, Jineng. A note on differences of composition operators acting on the Hardy space. Mathematica Scandinavica, Berkeley, CA, United States, v. 128, n. 2, 2022. DOI: 10.7146/math.scand.a-129748. Disponível em: https://journals.msp.org/mscand/article/view/118. Acesso em: 24 jul. 2026.