Valdés, J., J. Cartes, ., and E. Vogel. “Polyhedra As $\pm J$ Closed Ising Lattices”. Revista Mexicana De Física, vol. 46, no. 4, Jan. 2000, pp. 348-56, https://rmf.smf.mx/ojs/index.php/rmf/article/view/2970.