1. BINE profiinfo I/98,1998
2. One megawatt photovoltaic plant at the new Munich trade fair centre — the world’s largest rooftop plant;Cunow,1998
3. DFS-Statistik Photovoltaik 1990–2003, Deutscher Fachverband Solarenergie e.V., Bertoldstr. 45, 79098 Freiburg.
4. The German 1000-Roofs-Programme — a resume of the 5 years pioneer project for small grid-connected PV systems;Erge,1998
5. Market introduction of grid-connected photovoltaic installations in Germany;Gabler,1998