%0 Journal Article %A K. I. Iordanidis %T Solving the Second Boundary value Problem in four space Variables %J Ευκλείδης Γ %D 1987 %P 33-44 %V 14 %I mathdoc %U http://geodesic.mathdoc.fr/item/EUG_1987__14_a5/ %G gr %F EUG_1987__14_a5