EN中文
河南省耕地和粮食灰色关联分析
李茂
Gray Incidence Analysis between Cultivated Area and Grain Yield and its Affecting Factors of Henan Province
LI Mao
地理科学进展 . 2002, (2): 163 -172 .  DOI: 10.11820/dlkxjz.2002.02.009