1. N. V. Abrosimov, “To the solution of Seidel’s problem on the volumes of hyperbolic tetrahedra,” Sib. Elektron. Mat. Izv., 6, 211–218 (2009).
2. N. V. Abrosimov, “Seidel’s problem on the volume of a non-Euclidean tetrahedron,” Dokl. RAN, 435, No. 1, 7–10 (2010).
3. N. V. Abrosimov and G. A. Baygonakova, “Hyperbolic octahedron with mmm-symmetry,” Sib. Mat. Zh., 10, 123–140 (2013).
4. N. V. Abrosimov, M. Godoy-Molina, and A. D. Mednykh, “On the volume of spherical octahedron with symmetries,” Sovrem. Mat. i Ee Prilozh., 60, 3–12 (2008).
5. N. V. Abrosimov, E. S. Kudina, and A. D. Mednykh, “On the volume of a hyperbolic octahedron with $$ \overline{3} $$-symmetry,” Tr. MIAN, 288, 7–15 (2015).