by WOLFGANG WIRTH, ROLF-JURGEN SINGER, KLAUS WANGERMANN, KARL REIZLEIN, HANS SCHULZE, HEINZ-OTTO HORSTMANN, ULRICH ENGELHARDT, GUNTHER BOEHMKE, FRANK BARTKOWIAK
Year of Publication 27.09.1993

by WIRTH, WOLFGANG, SCHULZE, HANS, REIZLEIN, KARL, WANGERMANN, KLAUS, HORSTMANN, HEINZ-OTTO, ENGELHARDT, ULRICH, SINGER, ROLF-JUERGEN, BARTKOWIAK, FRANK, BOEHMKE, GUENTHER
Year of Publication 10.10.1990

by WIRTH,WOLFGANG,DE, ENGELHARDT,ULRICH,DE, HORSTMANN,HEINZ-OTTO,DE, SINGER,ROLF-JUERGEN,DE, WANGERMANN,KLAUS,DE, REIZLEIN,KARL,DE
Year of Publication 20.02.1992

by MOTHES,FRIEDER,DD, JOCHMANN,KARL-HEINZ,DD, BOERNER,STEPHAN,DD, ENGELHARDT,ULRICH,DD
Year of Publication 17.04.1985

by MOTHES,FRIEDER,DD, JOCHMANN,KARL-HEINZ,DD, BOERNER,STEPHAN,DD, ENGELHARDT,ULRICH,DD
Year of Publication 13.06.1984

by WANGERMANN, KLAUS. DR., 4150 KREFELD, DE, REIZLEIN, KARL. DR., 5000 KOELN, DE, PRIESNITZ, UWE. DR., 5650 SOLINGEN, DE, HORSTMANN, HEINZ-OTTO. DR., 5060 BERGISCH GLADBACH, DE, SOMMER, HERBERT. DR., 5650 SOLINGEN, DE, ENGELHARDT, ULRICH. DR., 5090 LEVERKUSEN, DE
Year of Publication 31.10.1991

by GERD KOHLER, GUNTER LAUSMANN, MATTHIAS KNORR, BERND FLECKEISEN, KURT MEINEL, HUBERT ENGELHARDT ET ULRICH TROGER
Year of Publication 15.05.1987