南京林业大学学报（自然科学版）
An Experiment of Spatial Positioning with Portable GPS Based on Forest District GPS Control Network
LI Chun gan1,2, DAI Hua-bing2
JOURNAL OF NANJING FORESTRY UNIVERSITY . 2006, (05): 127 -131 .  DOI: 10.3969/j.jssn.1000-2006.2006.05.031

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