1. Distributed thermal response test on a U-pipe borehole heat exchanger;Acuña,2009
2. Acuña, J., 2010. Improvements of U-pipe borehole heat exchangers. Licentiate Thesis. School of Industrial Engineering and Management, Royal Institute of Technology, Stockholm, Sweden.
3. Development of an in situ system for measuring ground thermal properties;Austin;ASHRAE Transactions,2000
4. Vertical temperature profile in ground heat exchanger during in situ test;Beier;Renewable Energy,2011
5. Conduction of Heat in Solids;Carslaw,1959