Overview of all keyword tags in articles

A bibliographic record is an entry being a uniform representation and description of a specific content item in a bibliographic database (or a library catalog), containing data elements required for its identification and retrieval, as well as additional supporting information, presented in a formalized bibliographic format. The additional information may support particular database functions such as search, or browse (e.g. keywords), or may serve fuller presentation of the content item in the database (e.g. article's abstract). Bibliographic records are usually retrievable from bibliographic databases by author, title, index term, or keyword. Bibliographic records can represent a wide variety of published contents, including traditional paper, digitized or born-digital publications. The process of creation, exchange, and preservation of bibliographic records are parts of a larger process, called bibliographic control. (Excerpt from <a href="http://en.wikipedia.org/wiki/Bibliographic_record">Wikipedia article: Bibliographic record</a>)