共 3 条
[2]
Applying GM(1,1) to Forecasting the Dynamic Variation of Groundwater in Chuang Ye Farm[J]. FU Hong 1,FU Qiang 2,XU Ya qin 1 (1 Basic Department,Northeast Agricultural Universiy,Harbin Heilongjiang,150030,PRC;2 College of Water conservancy and Civil Engineering,Northeast Agricultural University,Harbin,Heilongjiang,150030,PRC).Journal of Northeast Agricultural University(English Edition). 2003(01)