TY - JOUR AU - Frank, Rupert L. AU - Shterenberg, Roman G. TI - On the scattering theory of the Laplacian with a periodic boundary condition. II. Additional channels of scattering JO - Documenta mathematica PY - 2004 SP - 57 EP - 77 VL - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DOCMA_2004__9__a25/ LA - en ID - DOCMA_2004__9__a25 ER -