Paul Fazio (Editorial Staff), ISBN 0-415-41675-2*United States Patent 6098893 Comfort control system incorporating weather forecast data and a method for operating such a system (Inventor Stefan Berglund)*eGain
Paul Fazio (Editorial Staff), ISBN 0-415-41675-2*United States Patent 6098893 Comfort control system incorporating weather forecast data and a method for operating such a system (Inventor Stefan Berglund)== External links ==*eGain