V. M. Yakupov, “On the scattering theory for a system of differential equations with a smooth, compactly supported potential”, Differ. Uravn., 14:11 (1978), 2096–2098
1975
2.
V. M. Yakupov, “The Cauchy problem for the Korteweg–de Vries equation”, Differ. Uravn., 11:3 (1975), 556–561
