International Standard Serial Number

The International Standard number of consecutive compilations (English International Standard Serial Number ) ( ISSN ) is a number that uniquely identifies journals and book series. The counterpart for books is the ISBN for digital objects of the DOI. The ISSN is based on the international standard ISO 3297 in the year 1975. Central is managed by the ISSN International Centre de l' ISSN in Paris. Since late 2013 scientific blogs and blogs of general interest can obtain an ISSN.

Structure of the ISSN

An ISS - number consists of eight digits that are separated by a hyphen into two groups of four digits, such as ISSN 1234-5672 ( instead of a digit may also in last place an "X ", see below). From the ISSN is - different, the ISBN - not on the basis of number components recognizable from which linguistic or publishing a collective work comes, even if it let the two groups suspect with four digits. The hyphen serves only as an optical differentiator over other coding systems such as ISBN and better readability. Content represent the first seven digits represent the actual ISSN, the eighth digit is a check digit.

The check digit is an ISSN calculated from the difference of 11 to 11 modulo the descending 8-2 weighted sum of the digits ( eight first place plus seven times second place, etc.). For the value 10 the character " X" is used as a check digit.

In the below publications by Elizabeth H. Groot you find a literature compilation of historical and technical development of the ISSN.

Award and principles

The assignment of the ISSN is made by the national ISSN centers, which together form the ISSN network; in Germany, this is for example the German National Library in Frankfurt am Main, in Switzerland, the Swiss National Library in Bern. According to the ISO 3297 own ISSN should be assigned for each media type a magazine, for example, one for the paper edition and one for the CD -ROM edition. In practice this is not always so handled, because the digital media through the PDF now allow an output that is no different from the paper exit.

ISSN as EAN-Code

To implement the ISSN as a bar code, the thirteen - digit EAN code is used. Similar to the implementation of the ISBN for the seven digits of the ISSN is (without check digit) preceded by a 977. The numbers 11 and 12 can be used for special or double issues. In case of non - use of these reserve figures are each "0". The thirteenth digit is the check digit according to the EAN guidelines.

In Germany, the ISSN is not sufficient as a basis for coding from but when the magazine to be distributed in newsagents. Here appears magazines will need a custom title code, the so-called VDZ object number, which is assigned by the GS1. The reason is consideration for small retail outlets that do not have inventory management systems, be with the help of codes assigned to the appropriate prices. The detour via a system is in magazines also not necessary, for there is resale price maintenance: Every magazine costs anywhere always the same.

The price-fixing allowed to lay einzukodieren the price of the magazine in the code and so to keep the technical effort at the kiosks low. Encoded are: the rate of VAT, the track number and the price. The number sequence 419, for example, sets the VAT rate of 7%. It is followed by the five-digit track number, then the price of four digits and the check digit.

Technically, the magazine title code as the 13-digit EAN- code is produced. The determination of the checksum is the same.

Extensions

The eISSN is the international standard electronic journal number. Electronic copies and print versions do not have the same journal number. Appearance spending at identical titles in various forms of media at the same time, they will each receive a separate ISSN generally.

Since the ISSN refers only whole series, was introduced especially for electronic access to the Serial Item and Contribution Identifier ( SICI ), specified in ANSI / NISO Z39.56, which can also identify individual sections and articles in output volumes clearly. It is primarily for use by those members of the bibliographic community who are involved in the use or management of journal titles and their contributions ( engl. "intended Primarily for use by Those members of the bibliographic community Involved in the use or management of serial titles and Their Contributions " ). In 2001, it JSTOR article numbering.

Identification numbers for other publications

For other forms of publication, such as books or recorded music works have their own numbering systems:

Digital Object Identifier CODEN Integrated Authority File
301138
de