%0 Journal Article
%A Willi Jäger
%A Yoshimi Saito
%T On the spectrum of the reduced wave operators with cylindrical discontinuity.
%J Forum mathematicum
%D 1997
%P 29-60
%V 9
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FORUM_1997__9_2_141792/
%F FORUM_1997__9_2_141792