Q P Liu, “Fully supersymmetric hierarchies from an energy-dependent super Hill operator”, J. Phys. A: Math. Gen., 30, № 24, 1997, 8661
Renat Zhdanov, “On relation between potential and contact symmetries of evolution equations”, Journal of Mathematical Physics, 50, № 5, 2009, 053522
T. Wolf, A. Brand, “Examples of the investigation of differential equations with modularized programs”, Mathematical and Computer Modelling, 25, № 8-9, 1997, 133
Norbert Euler, Marianna Euler, “A Tree of Linearisable Second-Order Evolution Equations by Generalised Hodograph Transformations”, JNMP, 8, № 3, 2001, 342
V V Sokolov, Thomas Wolf, “A symmetry test for quasilinear coupled systems”, Inverse Problems, 15, № 2, 1999, L5
A. G. Meshkov, “On symmetry classification of third-order evolutionary systems of divergent type”, J Math Sci, 151, № 4, 2008, 3167