The present study examines the availability of web citations in scholarly journals of Library and Information Science and Communication and Media Studies. The journals were selected based on their high impact factor published between 2008 and 2017. A PHP script was used to crawl the Uniform Resource Locators collected from the references. A total of 12,251 articles were downloaded and 5,55,428 references were extracted. A total of 1,02,718 URLs were checked for their availability. Further, the lexical features of URL like file extension, path depth, character length and the top-level domain were determined. The research findings indicated that the percentage of web citations in articles has been continuously increased from 2008 to 2017 in both disciplines. The result of the accessibility check indicated that more number of URLs in CMS journal articles were accessible than in LIS journal articles. The majority of errors in both the disciplines were due to HTTP 404 error code (Not found error). The findings of the study will be helpful to authors, publishers and editorial staff to ensure that web citations will be accessible in future.

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图书馆与信息科学与传播与媒体研究期刊的网络引文分析：一项比较研究

本研究检查了图书馆与信息科学和传播与媒体研究学术期刊中网络引用的可用性。这些期刊是根据 2008 年至 2017 年间发表的高影响因子选择的。使用 PHP 脚本来抓取从参考文献中收集的统一资源定位器。共下载了 12,251 篇文章，提取了 5,55,428 条参考文献。总共检查了 1,02,718 个 URL 的可用性。此外，还确定了 URL 的词汇特征，如文件扩展名、路径深度、字符长度和顶级域。研究结果表明，从 2008 年到 2017 年，两个学科的文章中网络引用的百分比都在不断增加。可访问性检查的结果表明，CMS 期刊文章中可访问的 URL 数量比 LIS 期刊文章中的多。这两个学科中的大多数错误都是由于 HTTP 404 错误代码（未找到错误）造成的。该研究的结果将有助于作者、出版商和编辑人员确保将来可以访问网络引用。