QINGTANG, J.; LIZHONG, P. Wavelet Transform and Toeplitz-Hankel Type Operators. MATHEMATICA SCANDINAVICA, [S. l.], v. 70, p. 247–264, 1992. DOI: 10.7146/math.scand.a-12400. Disponível em: https://www.mscand.dk/article/view/12400. Acesso em: 5 may. 2024.