S. F. Adlaj, S. A. Berestova, N. E. Misyura, and E. A. Mityushov, “Illustrations of rigid body motion along a separatrix in the case of Euler-Poinsot”, Computer Tools in Education, no. 2, pp. 5–13, Apr. 2018, doi: 10.32603/2071-2340-2018-2-5-13.