Geographische Informationssysteme und neue digitale Medien in der Landschaftsplanung. - Markus Weidenbach (Logos-Verlag, 1999)

INFOOS: The Polish Environmental Information and Communication System - Technological and Organisational Aspect s of the Implementation of a System to Support Poland in the Environmental Impact Assessment Process. - Markus Weidenbach; Piotr Wezyk (EnviroInfo, 2003)