%0 Journal Article %K Energy efficiency %K Building simulation %K DOE-2 %K Gshp %K Vrf %A Xiaobing Liu %A Tianzhen Hong %B Energy and Buildings %D 2009 %G eng %N 5 %P 584-589 %R 10.1016/j.enbuild.2009.10.028 %T Comparison of energy efficiency between variable refrigerant flow systems and ground source heat pump systems %V 42 %8 01/2009 %9 Research Article