References

1. Closed Loop/Ground Source HeatPump Systems - Installation Guide IGSPHA
2. Ground Source Heat Pumps - Design of Geothermal Systems for Commercial and Institutional Buildings S.P.Kavnaugh
3. Thesis, OSU Modeling of Vertical Ground Loop Heat Exchangers for Ground Source Heat Pump Systems C.Yavuzturk
4. Louisians : Final Report The Evaluation of a 4000-Home Geothermal Heat Pump Retrofit at fort Polk P.J.Hughes
5. Ground-Source Heat Pump Case Studies and Utility Programs P.J.Lienau