1. H. Poincaré, Calcul des probabilités (Gauthier-Villars, Paris, 1912).
2. A. N. Kolmogorov, “On dynamical systems with an integral invariant on the torus,” Dokl. Akad. Nauk SSSR 93 (5), 763–766 (1953).
3. V. V. Kozlov, “Tensor invariants and integration of differential equations,” Russ. Math. Surv. 74 (1), 111–140 (2019).
4. M. V. Shamolin, “On integrability in transcendental functions,” Russ. Math. Surv. 53 (3), 637–638 (1998).
5. M. V. Shamolin, “Complete list of first integrals of dynamic equations of motion of a 4D rigid body in a nonconservative field under the assumption of linear damping,” Dokl. Phys. 58 (4), 143–146 (2013).