3Degnan J J,John Luck.Thirty Years of Satellite Laser Ranging[A].In:Ninth International Worksho Pon Laser Ranging Instrumentation[C],Canberra,Australia,1994,1.
4Xia Zhizhong,Cai Qingfu,Ye Wenwei,etc.A Developing Transportable Laser Ranging System in China[A].In:Ninth International Worksho Pon Laser Ranging Instrumentation[C],Canberra,Australia,1994.
