Citing this Article
 

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

Luca Amendola et al. (The Euclid Theory Working Group),
"Cosmology and Fundamental Physics with the Euclid Satellite",
Living Rev. Relativity 16,  (2013),  6. URL (cited on <date>):
http://www.livingreviews.org/lrr-2013-6

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