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Author

Roland Wengenmayr

6 books found

Cover of Erneuerbare Energie

Erneuerbare Energie

Thomas Bührke, Roland Wengenmayr · First published 2011

Cover of Erneuerbare Energie (German Edition)

Erneuerbare Energie (German Edition)

Roland Wengenmayr · First published 2010

Cover of Geheimnisvoller Kosmos

Geheimnisvoller Kosmos

Roland Wengenmayr, Thomas Bührke · First published 2008

Cover of Renewable energy

Renewable energy

Roland Wengenmayr · First published 2008

Cover of Erneuerbare Energien

Erneuerbare Energien

Thomas Bührke, Roland Wengenmayr · First published 2007

Cover of Big Business und Big Bang

Big Business und Big Bang

Max Rauner, Stefan Jorda, Roland Wengenmayr, Ranga Yogeshwar · First published 2002