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Journal of Henan Normal University(Natural Science)
1000-2367
1997 Issue 3
ji lei tu de ban sui duo xiang shi de zheng chu xing te zheng
zhang bing ru
..............
page:5-9
bu ji yu fang wei xiu shi jian de yi ge zui you geng huan ce lue
jia ji shen
..............
page:10-13
nong gan jun jie dao wai yuan ji yin jin ru you cai de yan jiu
zhou yan qing
..............
page:66-69
