by PIEPER,CHRISTIAN,.DR, JUNGVERDORBEN,HERMANN-JOSEF, HIRSCH,ROLF, BREUER,JAKOB, REINEHR,ULRICH,.DR
Year of Publication 31.03.1988

by PIEPER,CHRISTIAN,DR, REINEHR,ULRICH,DR, NOGAJ,ALFRED,DR
Year of Publication 05.08.1976

by GAERTNER,ECKARD, REICHARDT,MANFRED,.DR, PIEPER,CHRISTIAN,.DR, NOGAJ,ALFRED,.DR, SANDHU,SURINDER
Year of Publication 02.09.1982

by UHLEMANN,HANS,DR, PIEPER,CHRISTIAN,DR, FELTGEN,KARLHEINZ,DR, SANDHU,SURINDER
Year of Publication 13.05.1982

by HERBE?TZ,TONI, JUNGVERDORBEN,HERMANN-JOSEF, PIEPER,CHRISTIAN,DR, REINEHR,ULRICH,DR, SINGH SANDHU,SURINDER
Year of Publication 22.02.1979

by BONG, HORST, 4047 DORMAGEN, DE, PIEPER, CHRISTIAN. DR., 4040 NEUSS, DE, HURM, KARL. DR, NOGAJ, ALFRED. DR, LOHWASSER, HERMANN. DR
Year of Publication 22.09.1983

by HIRSCH,ROLF-B, PIEPER,CHRISTIAN,DR, BURGHARTZ,HANS-KARL, RINK,NORBERT,.DR
Year of Publication 16.01.1986

by SCHUEMMER,GUENTER, PIEPER,CHRISTIAN,DR, FELTGEN,KARLHEINZ,DR, SINGH SANDHU,SURINDER
Year of Publication 19.01.1978

by PIEPER,CHRISTIAN,DR, KLEINSCHMIDT,PETER,DR, REINEHR,ULRICH,DR
Year of Publication 22.12.1977

by BITTER,REINHARD,DR, SCHUEMMER,GUENTER, PIEPER,CHRISTIAN,DR, SINGH SANDHU,SURINDER
Year of Publication 06.10.1977

by PIEPER,CHRISTIAN,DR, FELTGEN,KARL-HEINZ,.DR, NOGAJ,ALFRED,DR
Year of Publication 30.09.1976

by PIEPER,CHRISTIAN,DR, HERBERTZ,TONI, JOSEF JUNGVERDORBEN,HERMANN, REINEHR,ULRICH,DR, SANDHU,SURINDER
Year of Publication 01.09.1977

by LORENZ,GUENTER,DR, UHLEMANN,HANS,DR, NICKEL,KLAUS, PIEPER,CHRISTIAN,DR, FELTGEN,KARL-HEINZ,.DR, NOGAJ,ALFRED,DR
Year of Publication 31.03.1977

by HURM,.DR.,KARL, LOHWASSER,.DR.,HERMANN, PIEPER,.DR.,CHRISTIAN, NOGAJ,.DR.,ALFRED, BONG,HORST
Year of Publication 23.07.1981