1. [Com] M. Combescure, Long range scattering for the two-body Schrödinger equation with “Hörmander-like” potentials, Comm. Partial Differential Equations 11 (1986), no. 2, 123–165.
2. [En] V. Enss, Quantum scattering theory for two and three-body systems with potentials of short and long range, Schrödinger operators (Como, 1984) ed. S. Graffi, Lecture Notes in Math., vol. 1159, Springer, Berlin, 1985, pp. 39–176.
3. [Hö1] L. Hörmander, The existence of wave operators in scattering theory, Math. Z. 146 (1976), no. 1, 69–91.
4. [Hö2] L. Hörmander, The Analysis of Linear Partial Differential Operators IV, Grundlehren der Mathematischen Wissenschaften [Fundamental Principles of Mathematical Sciences], vol. 275, Springer-Verlag, Berlin, 1985.
5. [IK] H. Isozaki and H. Kitada, Modified wave operators with time-independent modifiers, J. Fac. Sci. Univ. Tokyo Sect. IA Math. 32 (1985), no. 1, 77–104.