Group classification of ODE y‴=F(x, y, y′). - A. A. Gainetdinova; Nail H. Ibragimov; Sergey V. Meleshko (Commun. Nonlinear Sci. Numer. Simul., 2014)

Three-dimensional dynamical systems admitting nonlinear superposition with three-dimensional Vessiot-Guldberg-Lie algebras. - Nail H. Ibragimov; A. A. Gainetdinova (Appl. Math. Lett., 2016)