Biological databases citation formats

The most commonly cited bibliographic entity in biological science is an article in a jomnal therefore, the citation formats of most biological databases are defined with that type in mind. However, articles can also appear in books, manuscripts, theses, and now in electroiuc jornmals as well. The data model defines the fields necessary to cite a book, a jomnal, or a manuscript. An article citation occupies one field other fields display additional information necessary to imiquely identify the article in the book, journal, or manuscript—the author(s) of the article (as opposed to the author or editor of the book), the title of the article, page numbers, and so on. 

The subject of hydrogen bond (or bonding) is certainly a popular one. The ISI Science Citation database lists more than 26,000 papers that use this phrase in the title, abstract, or as a keyword. In the year 1999 alone there were about 3,000 such papers published. The importance of the hydrogen bond stems mainly from the fact that for certain types of molecules formation of such bonds determines the structure of the dimers or of larger molecular clusters. Thus, hydrogen bonds are characteristic features of many clusters, biological aggregates, and of condensed phases. 

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