
Fraunhofer Institute for Systems and Innovation Research, Karlsruhe, Germany
volume 39, number 3, 2004, page 116 to 131
Axel Michaelowa, Sonja Butzengeiger, Claudia Kemfert, Jochen Diekmann, Hans-Joachim Ziesing, Joachim Schleich, Regina Betz, Werner Betzenbichler, Katja Barzantny, Michael Klein, Martin Kruska, Michael Hahn, Jens-Peter Wegner