KOBAYASHI, Yuji. The Hilbert series of some graded algebras and the Poincaré series of some local rings. MATHEMATICA SCANDINAVICA, [S. l.], v. 42, p. 19–33, 1978. DOI: 10.7146/math.scand.a-11732. Disponível em: https://tidsskrift.dk/math/article/view/11732. Acesso em: 14 aug. 2026.