by GROSS, THOMAS DR, MICHELS, GISBERT DR
Year of Publication 24.10.2001

by MICHELS GISBERT DR, WINGLER FRANK DR, WEIDER RICHARD DR
Year of Publication 07.04.1998

by KOENIG, JOACHIM. DR., 51519 ODENTHAL, DE, MICHELS, GISBERT. DR., 51061 KOELN, DE
Year of Publication 01.02.1996

by EICHENAUER HERBERT, KRUEGER PETER DR, OSTAREK RALPH DR, MICHELS GISBERT DR, WEIDER RICHARD DR, LEITZ EDGAR
Year of Publication 04.11.1998

by MICHELS, GISBERT. DR., 51061 KOELN, DE, WINGLER, FRANK. DR., 51373 LEVERKUSEN, DE, WEIDER, RICHARD. DR., 51381 LEVERKUSEN, DE
Year of Publication 19.02.1998

by KORTE, SIEGFRIED. DR., 51519 ODENTHAL, DE, KOENIG, JOACHIM. DR., 51519 ODENTHAL, DE, MICHELS, GISBERT. DR., 51061 KOELN, DE, ZWEERING, UWE. DR., 40225 DUESSELDORF, DE
Year of Publication 01.02.1996

by SACKMANN, GUENTER DR, STRUSS, KLAUS DR, MICHELS, GISBERT DR
Year of Publication 24.10.2001

by MEYER, ROLF-VOLKER. DR., 4150 KREFELD, DE, MICHELS, GISBERT. DR., 5000 KOELN, DE, EHLERT, HANS-ALBERT., 5090 LEVERKUSEN, DE
Year of Publication 29.10.1992

by PROBST, JOACHIM. DR., 5090 LEVERKUSEN, DE, MEYER, ROLF-VOLKER. DR., 4150 KREFELD, DE, MICHELS, GISBERT. DR., 5000 KOELN, DE, LAAS, HANS-JOSEF. DR., 5000 KOELN, DE, REIFF, HELMUT. DR., 5090 LEVERKUSEN, DE, EHLERT, HANS-ALBERT., 5090 LEVERKUSEN, DE
Year of Publication 16.09.1993

by MICHELS, GISBERT. DR, HASSEL, TILLMANN. DR., 5000 KOELN, DE
Year of Publication 29.10.1992

by MICHELS, GISBERT. DR., 5000 KOELN, DE, EHLERT, HANS-ALBERT., 5090 LEVERKUSEN, DE
Year of Publication 29.07.1993

by MICHELS, GISBERT. DR., 5000 KOELN, DE, EHLERT, HANS-ALBERT., 5090 LEVERKUSEN, DE
Year of Publication 29.07.1993

by MICHELS, GISBERT. DR., 51061 KOELN, DE, EHLERT, HANS-ALBERT., 51373 LEVERKUSEN, DE, ZWEERING, UWE. DR., 40225 DUESSELDORF, DE
Year of Publication 30.05.1996