DENG, W. Structure Constants of the Weyl Calculus. MATHEMATICA SCANDINAVICA, [S. l.], v. 112, n. 1, p. 112–128, 2013. DOI: 10.7146/math.scand.a-15236. Disponível em: https://www.mscand.dk/article/view/15236. Acesso em: 25 apr. 2024.