- Q-Han Park, “Integrable deformation of self-dual gravity”, Physics Letters B, 269, № 3-4, 1991, 271
- Alexander Sakhnovich, “Nonisospectral integrable nonlinear equations with external potentials and their GBDT solutions”, J. Phys. A: Math. Theor., 41, № 15, 2008, 155204
- E. Sh. Gutshabash, V. D. Lipovskii, S. S. Nikulichev, “Nonlinear σ-model in a curved space, gauge equivalence, and exact solutions of (2+0)-dimensional integrable equations”, Theor Math Phys, 115, № 3, 1998, 619
- E. V. Doktorov, M. V. Milovanov, “Connection between the Einstein-Maxwell equations and the self-duality equations for gauge fields”, Theor Math Phys, 75, № 3, 1988, 599
- Евгений Шимонович Гутшабаш, Evgenii Shimonovitch Gutshabash, В Д Липовский, V D Lipovskii, С С Никуличев, S S Nikulichev, “Нелинейная сигма-модель в искривленном пространстве, калибровочная эквивалентность и точные решения $(2+0)$-мерных интегрируемых уравнений”, ТМФ, 115, № 3, 1998, 323
- Ling-Lie Chau, Kuang-Chao Chou, Bo-Yu Hou, Xing-Chang Song, “Integrability properties of symmetric-space fields reduced from axially symmetric Einstein and Yang-Mills equations”, Phys. Rev. D, 34, № 6, 1986, 1814
- S P Burtsev, “Non-isospectral and isomonodromic deformations: self-similar solutions”, Inverse Problems, 10, № 4, 1994, 837
- A.V. MIKHAILOV, 17, Solitons, 1986, 623
- Theodora Ioannidou, “Soliton dynamics in a novel discrete O(3) sigma model in (2 + 1) dimensions”, Nonlinearity, 10, № 5, 1997, 1357
- S.P. Burtsev, “The Maxwell-Bloch system with pumping and the fifth Painlevé equation”, Physics Letters A, 177, № 4-5, 1993, 341