BRUNS, Winfried; HIBI, Takayuki. A new invariant of lattice polytopes. Mathematica Scandinavica, Berkeley, CA, United States, v. 130, n. 2, 2024. DOI: 10.7146/math.scand.a-143486. Disponível em: https://journals.msp.org/mscand/article/view/49. Acesso em: 24 jul. 2026.