论文部分内容阅读
ＯＣＬＣ１９９８年推出一项全文数据库服务项目一ＥＣＯ（ＥｌｅｃｔｒｏｎｉｃＣｏｌｌｅｃｔｉｎｎｓＯｎｌｉｎｅ）服务。ＥＣＯ数据库中目前已累计了１７００余种期刊的约２００万篇文章的电子版全文数据，这些数据由３７家出版商提供。为ＥＣＯ提供全文数据的出版商数量
OCLC introduced a ECO (ElectronicCollectinnsOnline) service in 1998. The electronic full-text data of about 2 million articles in more than 1,700 journals is currently available in the ECO database and is provided by 37 publishers. Number of publishers that provide full-text data to ECO