LIZHONG, Peng. Paracommutators of Schatten- von Neumann class $S_p$, $0 < p < 1$. Mathematica Scandinavica, Berkeley, CA, United States, v. 61, p. 68–92, 1987. DOI: 10.7146/math.scand.a-12191. Disponível em: https://journals.msp.org/mscand/article/view/1480. Acesso em: 25 jul. 2026.