Li Xinguo, Wang Hongjun, Zhao Jun, etc, Experimental study on the heat exchange performance of Upipe underground heat exchanger with different backfilled material , J. of Solar Energy, (in publish).

• 李新国；汪洪军；赵军；等.；不同回填材料U型垂直埋管换热性能的实验研究；太阳能学报；待发表