Owing to the fact that a Living Reviews in Solar Physics article may evolve over time, we recommend to cite the article as follows:
Michel Rieutord and François Rincon,
"The Sun’s Supergranulation",
Living Rev. Solar Phys. 7, (2010), 2. URL (accessed <date>):
The date given as <date> then uniquely identifies the version of the article you are referring to.