Bibcode: Διαφορά μεταξύ των αναθεωρήσεων

The '''bibcode''' is an identifier used by a number of [[astronomy|astronomical]] data systems to specify literature references. The bibcode was developed to be used in [[SIMBAD]] and the [[NASA/IPAC Extragalactic Database]] (NED), but is now used more widely, for example, in the NASA [[Astrophysics Data System]].<ref name=a>[http://cdsweb.u-strasbg.fr/simbad/refcode/refcode-paper.html NED and SIMBAD Conventions for Bibliographic Reference Coding], M. Schmitz, G. Helou, P. Dubois, C. LaGue, B. Madore, H. G. Corwin Jr., and S. Lesteven, published in ''Information & On-Line Data in Astronomy'', eds. Daniel Egret and Miguel A. Albrecht, Kluwer Academic Publishers, 1995. ISBN 0792336593.</ref><ref name=b>[http://adsabs.harvard.edu/abs_doc/help_pages/data.html The ADS Data], help page, NASA ADS. Accessed on line [[November 5]], [[2007]].</ref> The code has a fixed length of 19 characters and has the form

<center><tt>YYYYJJJJJVVVVMPPPPA</tt> ,</center>