Michael N. Barth Rolf Hennicker Andreas Kraus Matthias Ludwig DANUBIA: An Integrative Simulation System for Global Change Research in the Upper Danube Basin. 639-666 2004 35 Cybernetics and Systems 7-8 http://dx.doi.org/10.1080/01969720490499425 db/journals/cas/cas35.html#BarthHKL04