%0 Journal Article %A M. Filar %T Boundary problems for the homogeneous iterated Helmholtz equation in a certain unbounded domain of the Euclidean n-space %J Commentationes Mathematicae %D 1985 %P 31-48 %V 25 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/cm.v25i1.6113/ %R 10.14708/cm.v25i1.6113 %G pl %F 10_14708_cm_v25i1_6113