by SALECK W,DT, MULLER BARDORFF W,DT, POLLET R,BE, GHYS T,BE, MOLL F,DT, PHILIPPAERTS H,BE
Year of Publication 12.11.1974

by FRENKEN H,DT, FRIEDSAN J,DT, MULLER BARDORFF W,DT, WASSER W,DT, HERZHOFF P,DT, GREF H,DT, SCHWEICHER W,DT, KOEPKE G,DT, BROWATZKI K,DT, VOSS K,DT
Year of Publication 18.12.1973