%0 Journal Article %A M. Filar %T Boundary value problems for the Helmholtz equation in a rectangular polyhedral angle of the Euclidean n-space %J Commentationes Mathematicae %D 1984 %P 31-41 %V 24 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/cm.v24i1.6073/ %R 10.14708/cm.v24i1.6073 %G pl %F 10_14708_cm_v24i1_6073