Sergei V. Agapov, Maria V. Demina, “Integrable geodesic flows and metrisable second-order ordinary differential equations”, Journal of Geometry and Physics, 199 (2024), 105168
H. C. Rosu, O. Cornejo-Perez, M. Perez-Maldonado, J. A. Belinchon, “Extension of a factorization method of nonlinear second order ODE's with variable coefficients”, Rev. Mex. Fis., 63:3 (2017), 218–222
Yu. Yu. Bagderina, “Invariants of a family of scalar second-order ordinary differential equations for Lie symmetries and first integrals”, J. Phys. A-Math. Theor., 49:15 (2016), 155202