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@article{FORUM_1997__9_2_141792, author = {Willi J\"ager and Yoshimi Saito}, title = {On the spectrum of the reduced wave operators with cylindrical discontinuity.}, journal = {Forum mathematicum}, pages = {29--60}, publisher = {mathdoc}, volume = {9}, number = {2}, year = {1997}, zbl = {0870.35071}, url = {http://geodesic.mathdoc.fr/item/FORUM_1997__9_2_141792/} }
Willi Jäger; Yoshimi Saito. On the spectrum of the reduced wave operators with cylindrical discontinuity.. Forum mathematicum, Tome 9 (1997) no. 2, pp. 29-60. http://geodesic.mathdoc.fr/item/FORUM_1997__9_2_141792/