南京林业大学学报（自然科学版）
The Unit Step Function Model for Crown Diameter of Short Rotation Eucalyptus
ZHOU Yuan-man1, XIE Zheng-sheng2, LIU Su-qing1, LIU Xin-tian1
JOURNAL OF NANJING FORESTRY UNIVERSITY . 2006, (02): 59 -62 .  DOI: 10.3969/j.jssn.1000-2006.2006.02.014

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