回复:不需要,你要查什么?是影响因子还是引用率?

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It is definitely a paid site, -Not-Free!- 给 Not-Free! 发送悄悄话 (79 bytes) () 05/03/2005 postreply 13:56:40

Some institutions subscribed ! -webofscien- 给 webofscien 发送悄悄话 (28 bytes) () 05/03/2005 postreply 14:38:59

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