Operations Research Proceedings 2005 Selected Papers of the Annual International Conference of the German Operations Research Society (GOR) Bremen, September 7−9, 2005 Hans-Dietrich Haasis · Herbert Kopfer Jörn Schönberger (Editors) Operations Research Proceedings 2005 Selected Papers of the Annual International Conference of the German Operations Research Society (GOR), Bremen, September 7−9, 2005 With 165 Figures and 109 Tables 123 Prof. Dr. Hans-Dietrich Haasis University of Bremen Institute of Shipping Economics and Logistics Dept. Logistics Systems Universitätsallee GW1 Block A 28359 Bremen Germany e-mail:
[email protected] Prof. Dr.-Ing. Herbert Kopfer University of Bremen Faculty of Business Studies and Economics Chair of Logistics PO Box 33 04 40 28334 Bremen Germany e-mail:
[email protected] Dr. Jörn Schönberger University of Bremen Faculty of Business Studies and Economics Chair of Logistics PO Box 33 04 40 28334 Bremen Germany e-mail:
[email protected] ISSN 0721-5924 ISBN-10 3-540-32537-9 Springer Berlin Heidelberg New York ISBN-13 978-3-540-32537-6 Springer Berlin Heidelberg New York This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilm or in any other way, and storage in data banks. Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, and permission for use must always be obtained from Springer. Violations are liable for prosecution under the German Copyright Law. Springer is a part of Springer Science+Business Media springer.com © Springer-Verlag Berlin Heidelberg 2006 Printed in Germany The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. Production: LE-TEX Jelonek, Schmidt & Vöckler GbR, Leipzig Cover design: eStudio Calamar S.L., F. Steinen-Broo, Pau/Girona, Spain SPIN 11675679 42/3100/YL 543210 Printed on acid-free paper Preface of the Conference Chairs From September 7-9, 2005 the international scientific annual conference Operations Research 2005 of the Gesellschaft f¨ ur Operations Research (GOR) took place at the Bremen U