PREDICTION ANALYSIS OF THE TOTAL INCOME GM(1,1) MODEL OF THE STATE-RUN FORESTRY FARM
Gao Zhenhua (Nanjing Forestry University)Zhang Yuqiang
JOURNAL OF NANJING FORESTRY UNIVERSITY . 1993, (03): 44 -47 .  DOI: 10.3969/j.jssn.1000-2006.1993.03.010