- I T Habibullin, K I Faizulina, A R Khakimova, “Laplace transformations and sine-Gordon type integrable PDE”, J. Phys. A: Math. Theor., 57, № 1, 2024, 015203
- Alexander G Rasin, Jeremy Schiff, “Symmetry structure of integrable hyperbolic third order equations”, J. Phys. A: Math. Theor., 56, № 48, 2023, 485204