by KOCH,OTTO,.DR, LIEBIG,LOTHAR,.DR, DOERING,JOACHIM,.DR
Year of Publication 09.08.1984

by LIEBIG,LOTHAR,.DR, OTT,KARL-HEINZ,.DR, LINDNER,CHRISTIAN,.DR
Year of Publication 25.09.1980

by LIEBIG,LOTHAR,.DR, OTT,KARL-HEINZ,.DR, LINDNER,CHRISTIAN,.DR
Year of Publication 25.09.1980

by LIEBIG,LOTHAR,.DR, OTT,KARL-HEINZ,.DR, LINDNER,CHRISTIAN,.DR
Year of Publication 25.09.1980

by HEDERICH,MANFRED, WASSMUTH,GERD,.DR, ULLRICH,MARTIN, WINGLER,FRANK,.DR, LIEBIG,LOTHAR,.DR
Year of Publication 21.12.1978

by WINGLER, FRANK. DR, LIEBIG, LOTHAR. DR, WASSMUTH, GERD. DR, HEDERICH, MANFRED, 5090 LEVERKUSEN, DE, ULLRICH, MARTIN
Year of Publication 24.03.1988

by SCHMIDT,ADOLF,DR, LIEBIG,LOTHAR,DR, WINGLER,FRANK,DR, WASSMUTH,GERD,DR
Year of Publication 31.03.1977

by SCHMIDT,ADOLF,DR, LIEBIG,LOTHAR,DR, WINGLER,FRANK,DR, WASSMUTH,GERD,DR
Year of Publication 07.10.1976

by FREITAG,DIETER,.DR, TACKE,PETER,.DR, BOTTENBRUCH,LUDWIG,.DR, LIEBIG,LOTHAR,.DR, REINKING,KLAUS,.DR
Year of Publication 05.01.1983

by SCHULZ,NIKOLAUS,DR, ULLRICH,MARTIN, REICHLE,LUTZ,DR, WASSMUTH,GERT,DR, WINGLER,FRANK,.DR, LIEBIG,LOTHAR,.DR
Year of Publication 28.01.1982

by HUMME,GERT,.DR, PISCHTSCHAN,ALFRED,.DR, LIEBIG,LOTHAR,.DR, WINGLER,FRANK,.DR, OTT,KARL-HEINZ,.DR
Year of Publication 03.05.1979

by HUMME,GERT,.DR, PISCHTSCHAN,ALFRED,.DR, LIEBIG,LOTHAR,.DR, WINGLER,FRANK,.DR, OTT,KARL-HEINZ,.DR
Year of Publication 03.05.1979

by LIEBIG, LOTHAR. DR., 5060 BERGISCH GLADBACH, DE, REINKING, KLAUS. DR., 5632 WERMELSKIRCHEN, DE, FREITAG, DIETER. DR., 4150 KREFELD, DE, TACKE, PETER. DR, BOTTENBRUCH, LUDWIG. DR
Year of Publication 26.06.1986

by PISCHTSCHAN, ALFRED. DR., 5067 KUERTEN, DE, LIEBIG, LOTHAR. DR, WINGLER, FRANK. DR, OTT, KARL-HEINZ. DR., 5090 LEVERKUSEN, DE, HUMME, GERT. DR., 5074 ODENTHAL, DE
Year of Publication 14.08.1985

by PISCHTSCHAN, ALFRED. DR., 5067 KUERTEN, DE, LIEBIG, LOTHAR. DR, WINGLER, FRANK. DR, OTT, KARL-HEINZ. DR., 5090 LEVERKUSEN, DE, HUMME, GERT. DR., 5074 ODENTHAL, DE
Year of Publication 30.05.1985

by CASPER,CLEMENS,.DR, LIEBIG,LOTHAR,DR, WINGLER,FRANK,.DR
Year of Publication 09.11.1978

by LIEBIG,LOTHAR,DR, WINGLER,FRANK,DR, WASSMUTH,GERD,DR
Year of Publication 06.10.1977

by LIEBIG,LOTHAR,DR, BARTL,HERBERT,DR, WINGLER,FRANK,DR
Year of Publication 16.06.1977

by HUMME,GERT,DR, LIEBIG,LOTHAR,DR, PRINZ,RICHARD,DR, WINGLER,FRANK,DR
Year of Publication 24.05.1978

by NOUVERTNE,WERNER,DR, LIEBIG,LOTHAR,DR, WINGLER,FRANK,DR, MARGOTTE,DIETER,DR
Year of Publication 24.05.1978