Yu A Grigoryev, A V Tsiganov, “Separation of variables for the generalized Henon–Heiles system and system with quartic potential”, J. Phys. A: Math. Theor., 44, no. 25, 2011, 255202
Andrey V. Tsiganov, “Killing tensors with nonvanishing Haantjes torsion and integrable systems”, Regul. Chaot. Dyn., 20, no. 4, 2015, 463
A. V. Tsiganov, “The Stäckel systems and algebraic curves”, Journal of Mathematical Physics, 40, no. 1, 1999, 279
W. Sarlet, A. Ramos, “Adjoint symmetries, separability, and volume forms”, Journal of Mathematical Physics, 41, no. 5, 2000, 2877
Андрей Владимирович Цыганов, Andrey Vladimirovich Tsiganov, “Однородные системы типа систем Штеккеля”, ТМФ, 115, no. 1, 1998, 3
A. V. Tsiganov, “New variables of separation for particular case of the Kowalevski top”, Regul. Chaot. Dyn., 15, no. 6, 2010, 659
Max Karlovini, Kjell Rosquist, “A unified treatment of cubic invariants at fixed and arbitrary energy”, Journal of Mathematical Physics, 41, no. 1, 2000, 370
Андрей Владимирович Цыганов, Andrey Vladimirovich Tsiganov, “О бигамильтоновых системах натурального вида”, ТМФ, 149, no. 2, 2006, 161
W. Sarlet, R. Sahadevan, F. Cantrijn, “Symmetries, separability and volume forms”, Journal of Mathematical Physics, 39, no. 11, 1998, 5908
José F Cariñena, Manuel F Rañada, Mariano Santander, Murugaian Senthilvelan, “A non-linear oscillator with quasi-harmonic behaviour: two- andn-dimensional oscillators”, Nonlinearity, 17, no. 5, 2004, 1941