TY - JOUR AU - K. I. Iordanidis TI - Solving the Second Boundary value Problem in four space Variables JO - Ευκλείδης Γ PY - 1987 SP - 33 EP - 44 VL - 14 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EUG_1987__14_a5/ LA - gr ID - EUG_1987__14_a5 ER -