DYNAMIC FORECASTING FOR CHINA’S TIMBER SUPPLY AND DEMAND TILL 2010 BY GREY MODEL AND ITS ANALYSIS
Zhang Zhiguang; Tang Wenbin
JOURNAL OF NANJING FORESTRY UNIVERSITY . 1995, (03): 53 -64 .  DOI: 10.3969/j.jssn.1000-2006.1995.03.011