1. Spectral properties of Schrödinger operator and scattering theory;Agmon;Ann. Sc. Norm. Super. Pisa, Ser. IV,1975
2. C0-Groups, Commutator Methods and Spectral Theory of N-Body Hamiltonians;Amrein,1996
3. The limiting principle for partial differential operators;Ben-Artzi;Mem. Amer. Math. Soc.,1987
4. Remarks on relativisitic Schrödinger operators and their extensions;Ben-Artzi;Ann. IHP, Phys. Theor.,1997
5. Dispersion estimates for fourth order Schrödinger equations;Ben-Artzi;C. R. Acad. Sci., Ser. I Math.,2000