%0 Journal Article
%A Kleefeld, Andreas
%T The exterior problem for the Helmholtz equation with mixed boundary conditions in three dimensions
%J International journal of computer mathematics
%V 89
%N 17
%@ 1029-0265
%C London [u.a.]
%I Taylor and Francis
%M FZJ-2017-01754
%P 2392 - 2409
%D 2012
%F PUB:(DE-HGF)16
%9 Journal Article
%R 10.1080/00207160.2012.709932
%U https://juser.fz-juelich.de/record/827640