1. Spectral properties of Schrödinger operators and scattering theory;Agmon;Ann. Scuola Norm. Sup. Pisa Cl. Sci.,1975
2. [Ag]2|S. Agmon, A representation theorem for solutions of the Helmholtz equation and resolvent estimates for the Laplacian, in Jürgen Moser 60th birthday volume, to appear.
3. Analytic scattering theory for 2-body Schrödinger operator;Balslev;J. Funct. Anal.,1978
4. The singular spectrum of elliptic operators in Lp(Rn);Balslev;Math. Scand.,1966
5. Limiting absorption principle and resonances for the Dirac operator;Balslev,1990