@article{Lesgourgues:2012ep,
  author = "Lesgourgues, Julien",
  title = "{Cosmology and dark energy: theory}",
  doi = "10.22323/1.134.0015",
  journal = "PoS",
  year = 2012,
  volume = "EPS-HEP2011",
  pages = "015"
}