从国外权威性检索工具的频繁变动看我国信息检索系统存在的问题

从国外权威性检索工具的频繁变动看我国信息检索系统存在的问题

Library and Information Service ›› 1997, Vol. 41 ›› Issue (8) : 59-59,21.

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Library and Information Service ›› 1997, Vol. 41 ›› Issue (8) : 59-59,21.

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