<b>Scope and limitations of library metrics for the assessment of ebook usage: COUNTER R5 and link resolver. </b>

<b>Scope and limitations of library metrics for the assessment of ebook usage: COUNTER R5 and link resolver. Datasets</b>(a) The CAMBRIDGE CORE EBOOKS 2019-2021 dataset includes data comparing the metrics of matched e-book titles between COUNTER R5 and the link resolver. The data was collected in January 2022 from the Library Discovery of Autonomous University of Madrid in Spain, covering the years 2019 to 2021.(b) The EBSCOhost EBOOKS 2019-2021 dataset includes data comparing the metrics of matched e-book titles between COUNTER R5 and the link resolver. The data was collected in January 2022 from the Library Discovery of Autonomous University of Madrid in Spain, covering the years 2019 to 2021. (c) The SCIENCEDIRECT EBOOKS 2019-2021 dataset includes data comparing the metrics of matched e-book titles between COUNTER R5 and the link resolver. The data was collected in January 2022 from the Library Discovery of Autonomous University of Madrid in Spain, covering the years 2019 to 2021.<br>用于电子书使用情况评估的图书馆指标的适用范围与局限性：COUNTER R5与链接解析器（link resolver）数据集 (a) 剑桥核心电子书（CAMBRIDGE CORE EBOOKS）2019-2021数据集包含匹配电子书题名在COUNTER R5与链接解析器之间的指标对比数据。该数据集于2022年1月从西班牙马德里自治大学图书馆发现系统（Library Discovery）采集，覆盖2019年至2021年的相关数据。 (b) EBSCOhost电子书（EBSCOhost EBOOKS）2019-2021数据集包含匹配电子书题名在COUNTER R5与链接解析器之间的指标对比数据。该数据集于2022年1月从西班牙马德里自治大学图书馆发现系统采集，覆盖2019年至2021年的相关数据。 (c) ScienceDirect电子书（SCIENCEDIRECT EBOOKS）2019-2021数据集包含匹配电子书题名在COUNTER R5与链接解析器之间的指标对比数据。该数据集于2022年1月从西班牙马德里自治大学图书馆发现系统采集，覆盖2019年至2021年的相关数据。