V. Dragović, M. Radnović, “Topological Invariants for Elliptical Billiards and Geodesics on Ellipsoids in the Minkowski Space”, J Math Sci, 223, no. 6, 2017, 686
Y. Li, David W. McLaughlin, “Morse and Melnikov functions for NLS Pde's”, Commun.Math. Phys., 162, no. 1, 1994, 175
Алексей Викторович Болсинов, Aleksei Viktorovich Bolsinov, П Х Рихтер, P H Richter, Анатолий Тимофеевич Фоменко, Anatoly Timofeevich Fomenko, “Метод круговых молекул и топология волчка Ковалевской”, Матем. сб., 191, no. 2, 2000, 3
Anatory T. Fomenko, Modern Geometric Computing for Visualization, 1992, 3
Holger R. Dullin, Hamiltonian Systems with Three or More Degrees of Freedom, 1999, 330
Eva Miranda, “Integrable systems and group actions”, Open Mathematics, 12, no. 2, 2014, 240
A. V. Bolsinov, A. T. Fomenko, “Orbital classification of geodesic flows on two-dimensional ellipsoids. The Jacobi problem is orbitally equivalent to the integrable Euler case in rigid body dynamics”, Funct Anal Its Appl, 29, no. 3, 1995, 149
T. Z. Nguyen, L. S. Polyakova, “A topological classification of integrable geodesic flows on the two-dimensional sphere with an additional integral quadratic in the momenta”, J Nonlinear Sci, 3, no. 1, 1993, 85
A. T. Fomenko, “Symplectic topology of integrable dynamical systems. Rough topological classification of classical cases of integrability in the dynamics of a heavy rigid body”, J Math Sci, 94, no. 4, 1999, 1512
Tosiyasu L. Kunii, Cyberworlds, 1998, 5