Quote, excerpt or any kind of citation should be marked with the link of original article.

如果有摘选内容，需要注明文章来源链接。

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The article discussed the searching methods of Science Citation Index Database.

本文讨论了《科学引文索引》数据库的检索技术。

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In this article, author introduces the goals, significance and functions of Chinese Social Science Citation Index (CSSCI). And also describes its structure and flow direction of data.

本文介绍《中文社会科学引文索引》(CSSCI)的目标、意义及功能，并对其数据组织和数据流进行了详细的表述。

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Situation C: likewise, but with a citation to that third article, but no quotation marks.

FORBES: I Am an Academic Fraud

And if I could take the privilege here, there's been some discussion stirred up by my citation of a MarketWatch article last week.

WHITEHOUSE: Press Briefing