Startsev S.Ya., “Relationships Between Symmetries Depending on Arbitrary Functions and Integrals of Discrete Equations”, J. Phys. A-Math. Theor., 50:50 (2017), 50LT01
Zheltukhin K., Zheltukhina N., Bilen E., “On a Class of Darboux-Integrable Semidiscrete Equations”, Adv. Differ. Equ., 2017, 182
Gubbiotti G., Yamilov R.I., “Darboux Integrability of Trapezoidal H-4 and H-4 Families of Lattice Equations i: First Integrals”, J. Phys. A-Math. Theor., 50:34 (2017), 345205, 1–26
Gubbiotti G., “Integrability of Difference Equations Through Algebraic Entropy and Generalized Symmetries”, Symmetries and Integrability of Difference Equations, Crm Series in Mathematical Physics, ed. Levi D. Rebelo R. Winternitz P., Springer, 2017, 75–151
Dinh T. Tran, Peter H. van der Kamp, G. R. W. Quispel, “Poisson Brackets of Mappings Obtained as $(q, -p)$ Reductions of Lattice Equations”, Regul. Chaotic Dyn., 21:6 (2016), 682–696
Demskoi D.K., Tran D.T., “Darboux integrability of determinant and equations for principal minors”, Nonlinearity, 29:7 (2016), 1973–1991
Zheltukhin K., Zheltukhina N., “Semi-discrete hyperbolic equations admitting five dimensional characteristic x -ring”, J. Nonlinear Math. Phys., 23:3 (2016), 351–367
Gubbiotti G., Levi D., Scimiterna Ch., “On Partial Differential and Difference Equations With Symmetries Depending on Arbitrary Functions”, Acta Polytech., 56:3 (2016), 193–201
С. В. Смирнов, “Интегрируемость по Дарбу дискретных двумеризованных цепочек Тоды”, ТМФ, 182:2 (2015), 231–255 ; S. V. Smirnov, “Darboux integrability of discrete two-dimensional Toda lattices”, Theoret. and Math. Phys., 182:2 (2015), 189–210
Levi D., Martina L., Winternitz P., “Lie-Point Symmetries of the Discrete Liouville Equation”, J. Phys. A-Math. Theor., 48:2 (2015), 025204