Jinggang Wang, Ligai Kang, Jie Liu. CO2 Transcritical Cycle for Ground Source Heat Pump. In Mark Burgin, Masud H. Chowdhury, Chan H. Ham, Simone A. Ludwig, Weilian Su, Sumanth Yenduri, editors, CSIE 2009, 2009 WRI World Congress on Computer Science and Information Engineering, March 31 - April 2, 2009, Los Angeles, California, USA, 7 Volumes. pages 213-217, IEEE Computer Society, 2009. [doi]