1. Aharonov D.: The hexagonal packing lemma and Rodin-Sullivan conjecture. Trans. Am. Math. Soc. 343(1), 157–167 (1994)
2. Andreev, E.M.: On convex polyhedra in lobačhevskii space, Mat. Sb. (N.S) 81(123) 445–478 (1970);
3. English transl. in Math. USSR Sb. 12, 413–440 (1970)
4. Andreev, E.M.: Convex polyhedra of finite volume in lobačhevskii space, Mat. Sb. (N.S) 83(125) 256–260 (1970);
5. English transl. in Math. USSR Sb. 12, 255–259 (1970)