Citing an Article

Owing to the fact that a Living Reviews in Relativity article may evolve over time, we recommend to cite the article as follows:

Neal Jackson,
"The Hubble Constant",
Living Rev. Relativity 10, (2007), 4. URL (accessed <date>):
http://www.livingreviews.org/lrr-2007-4

The date given as <date> then uniquely identifies the version of the article you are referring to.