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Journal of Northwest Normal University(Natural Science)
1001-988X
1992 Issue 4
jin shu duan lie ji duan kou fen lei de luo ji wen ti yu xiu zheng
li shu zhong
..............
page:31-39
gu - ye zuo qu fa fen li xi tu yuan su shi de ying xiang yin su
gao jin zhang
..............
page:44-48
