from The Century Dictionary.
- Capable of being cited or quoted.
from the GNU version of the Collaborative International Dictionary of English.
- adjective Capable of being cited.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Capable of being, or appropriate to be,
Sorry, no etymologies found.
What is obvious from this equation is that the impact factor depends crucially on which article types Thomson Scientific deems as "citable" - the fewer, the better (i.e., the lower the denominator, the higher the impact factor).
The names and institutions of the authors are published with each article, so all of the material can be cited by students in their classwork (hence it's "citable").
The variability comes from the decision of what to include as "citable" articles and from the journals that are covered in Scopus versus ISI.
One problem with this game, leaving aside the ethics of it, is that the rules are unclear-editors can, for example, try to persuade Thomson Scientific to reduce the denominator, but the company refuses to make public its process for choosing "citable" article types.
Number of articles deemed to be "citable" by Thomson Scientific that were published in Journal X in 2003-2004
Wikipedia never claims to be an academic resource (and no decent academic would ever consider it as such, even in highschool, wikipedia is never considerd a "citable" source) but rather a means to get the "gist" of a topic and a gateway to more reliable sources.
InPress therefore allows the publication of fully citable articles up to 8 weeks or more before publication in a printed journal issue
Each paper has a DOI and is fully searchable and citable; papers are assigned to an issue upon publication in print.
Last summer I wrote about a great idea to make government documents permanently citable.
The same principles apply when producing citable government data.