1. Current status of ground source heat pumps and underground thermal energy storage in Europe;Sanner;Geothermics,2003
2. N. Muraya, Numerical modeling of the transient thermal interference of vertical U-tube heat exchangers, Ph.D. Thesis, Texas A&M University, 1995.
3. A short time step response factor model for vertical ground loop heat exchangers;Yavuzturk;ASHRAE Transactions,1999
4. Simulation of a single vertical U-tube ground heat exchanger in an infinite medium;Rottmayer;ASHRAE Transactions,1997
5. A transient two-dimensional finite volume model for the simulation of vertical U-tube ground heat exchangers;Yavuzturk;ASHRAE Transactions,1999