VALFELLS, Asgeir. Minimal piecewise linear cones in $\mathbb{R}^4$. Mathematica Scandinavica, Berkeley, CA, United States, v. 130, n. 1, 2024. DOI: 10.7146/math.scand.a-140336. Disponível em: https://journals.msp.org/mscand/article/view/62. Acesso em: 24 jul. 2026.