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Abstract
"ISSN" is "International Standard Serial Number" and "ISBN" is "International Standard Book Number". One of the man differences between the ISBN and ISSN is that the former one identifies the publisher whereas the latter one does not identify the publisher. International Standard Book Number is given for monographs or books whereas International Standard Serial number is given to a series of monographs or books. In the case of the ISSN, it is only optional, which means that the publisher is not legally bound to use it. On the other hand, the ISBN is obligatory if the book falls under the ISBN application. In simple words, the ISBN is assigned for a single or separate book, and ISSN is assigned for a series of books. When ISBN identifies the specific volume or issue, the ISSN only identifies the series of the volume or issue.
Keywords: ISSN, International Standard Serial Number, ISBN, International Standard Book Number.
1. Introduction
An ISSN is an international standard serial number which is unique international identifier for serial publications. ISSN are assigned since the 1970s and universally accepted within the print publishing world as a means of identifying the serials. Consequently, and from the end of the 1990s, ISSN are also assigned to electronic serials (online, CD-ROM, DVD etc.) and to electronic "ongoing integrating resources" like websites and databases. The ISSN is an eight-digit number which identifies periodical publications as such including electronic serials. The ISSN is a numeric code which is used as an identifier. The ISSN text the form of acronym ISSN followed by two groups of four digits separated by a hyphen. The eight character is a control digit calculated according to a modulo eleven algorithm on the basis of this seven preceding digits. This eighth control character may be an "X" if the result of the computing is equal to "10", in order to avoid any ambiguity (figure 1).
The ISSN is linked to a standardized form of the title of the identified serial, known as the "key title", which repeats the title of the publication, qualifying it with additional elements in order to distinguish it from other publications having identical titles. If the title of the publication changes in any significant way, a new ISSN...