Ablowitz M. J., Stud. Appl. Math., 53, 249, 10.1002/sapm1974534249
Ablowitz M. J., 1992, Solitons, Nonlinear Evolution Equations and Inverse Scattering
Akhatov I. Sh., J. Soviet Math., 55, 1401, 10.1007/BF01097533
Ames W. F., 1965, Nonlinear Partial Differential Equations
Bluman G., J. Math. Phys., 29, 337
Bluman G. W., 1989, Symmetries and Differential Equations, 10.1007/978-1-4757-4307-4
Blaszak M., 1998, Multi-Hamiltonian Theory of Dynamical Systems, 10.1007/978-3-642-58893-8
Fuchssteiner B., Prog. Theor. Phys., 70, 1508, 10.1143/PTP.70.1508
Finkel F., Phys. Lett. A, 36, 293
Fokas A. S., Stud. Appl. Math., 77, 253, 10.1002/sapm1987773253
W. Hereman, Group Theory and Numerical Analysis, CRM Proccedings and Lecture Series 39, eds. P. Winternitz (Americal Mathematical Society, 2005) p. 267.
Ibragimov N. H., 1994, CRC Handbook of Lie Group Analysis of Differential Equations-Symmetries, Exact Solutions and Conservation Laws
Karasu-Kalkanli A., J. Math. Phys., 49, 073516, 10.1063/1.2953474
Krasilshchik I. S., Acta Appl. Math., 15, 161, 10.1007/BF00131935
Kupershmidt B. A., Phys. Lett. A, 372, 2634, 10.1016/j.physleta.2007.12.019
Kundu A., J. Phys. A Math. Theor., 41, 495201, 10.1088/1751-8113/41/49/495201
Kundu A., J. Phys: A Math. Theor., 42, 115213, 10.1088/1751-8113/42/11/115213
Kundu A., J. Math. Phys., 50, 102702, 10.1063/1.3204081
Kersten P. H. M., Acta Appl. Math.
Lakshmanan M., 2003, Nonlinear Dynamics, Integrability, Chaos and Patterns
Lax P. D., Commun. Pure Appl. Math., 21, 467, 10.1002/cpa.3160210503
Lakshmanan M., J. Math. Phys., 24, 795, 10.1063/1.525752
Lin R., Physica A, 291, 287, 10.1016/S0378-4371(00)00519-7
Magri F., J. Math. Phys., 19, 1156, 10.1063/1.523777
Melnikov V. M., Phys. Lett. A, 133, 493, 10.1016/0375-9601(88)90522-1
10.1007/978-3-642-88703-1_4
10.1007/978-1-4684-0274-2
Ovsiannikov L. V., 1982, Group Analysis of Differential Equations
Ramani A., Anal. Appl., 6, 401, 10.1142/S0219530508001249
Sahadevan R., J. Math. Phys., 42, 053505
Sahadevan R., J. Nonlinear Math. Phys., 17, 379, 10.1142/S1402925110000969
Stephani H., 1989, Differential Equations: Their Solutions Using Symmetries
Shao Y., J. Phys. A: Math. Gen, 38, 2441, 10.1088/0305-4470/38/11/008
Vinogradov A. M., Soviet Math. Dokl., 29, 337
Wang J. P., J. Phys. A: Math. Theor., 42, 362004, 10.1088/1751-8113/42/36/362004
Yao Y., Lett. Math. Phys., 86, 193, 10.1007/s11005-008-0281-4
Zakharov V. E., Func. Anal. Appl., 5, 18
