Page 19 - Geothermal Energy Systems Exploration, Development, and Utilization
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Preface XVII
Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU).
Special thanks go to the coworkers of the International Centre for Geothermal
Research at the Helmholtz Centre in Potsdam. These colleagues assisted the
development of the book with fruitful discussions over the last two years.
Potsdam,Germany Ernst Huenges
December 2009