Topics in soliton theory and exactly solvable nonlinear equations : proc. of the conf. on nonlinear evolution equations, solitons and the inverse scattering transform, Oberwolfach, Germ., Jul. 27-Aug. 2, 1986 / Conference on nonlinear evolution equations, solitons and the inverse scattering transform (1986; Oberwolfach), 1987. - VIII, 342 p. с. - Текст : непосредственный.