BOGVAD, R. Gorenstein rings with transcendental Poincaré-series. MATHEMATICA SCANDINAVICA, [S. l.], v. 53, p. 5–15, 1983. DOI: 10.7146/math.scand.a-12010. Disponível em: https://www.mscand.dk/article/view/12010. Acesso em: 2 may. 2024.