- Sergei Igonin, “Matrix Lax pairs under the gauge equivalence relation induced by the gauge group action and Miura-type transformations for lattice equations”, Journal of Geometry and Physics, 2025, 105585

- Mikhail Pavlovich Kolesnikov, “Проблема классификации негативных симметрий”, Теоретическая и математическая физика, 224, no. 2, 2025, 342

- V. É. Adler, A. B. Shabat, R. I. Yamilov, “Symmetry Approach to the Integrability Problem”, Theoretical and Mathematical Physics, 125, no. 3, 2000, 1603

- R. Hernández Heredero, “Integrable Quasilinear Equations”, Theoretical and Mathematical Physics, 133, no. 2, 2002, 1516

- M. P. Kolesnikov, “The negative symmetry classification problem”, Theor Math Phys, 224, no. 2, 2025, 1398
