Nm1997b
From DispersiveWiki
P.I. Naumkin. Asymptotic behavior for large time values of solutions of the nonlinear Schrödinger equation (Russian). Translation in Izv. Math. 61 (1997), no. 4, 757-794. Izv. Ross. Akad. Nauk Ser. Mat, 61 (1997), 81-118. MathSciNet, arXiv.