[1]
Siroid I.-P.P. 1992. Matrix solutions of the equations $\mathfrak{B}U_t= -U_{xx} + 2U^3+\mathfrak{B} [U_x,U]+4cU$: development of the method of the inverse problem of dissipation. Ukrains’kyi Matematychnyi Zhurnal. 44, 9 (Oct. 1992), 1264-1275.