On the long-range scattering for one- and two-particle Schroedinger operators with constant magnetic fields. Tsukuba Journal of Mathematics. 1995. 19. 3. 369-376
On the analyticity of spectral functions for some exterior boundary value problems. Glasnik Matematicki. 1988. 23. 24. 291-312
A remark on the analyticity of spectral functions for some exterior boundary value problems. Science reports of Niigata University, Series A. 1988. 82. 24. 25-31
Spectral Theory for some symmetric systems in an exterior domain. Tsukuba Journal of Mathematics. 1987. 11. 24. 241-256