@article {2017PhT....70l..32P,
	title = {Baryon acoustic oscillations: A cosmological ruler},
	journal = {Physics Today},
	volume = {70},
	number = {12},
	year = {2017},
	month = {dec},
	pages = {32-38},
	doi = {10.1063/PT.3.3789},
	author = {Percival, Will J.}
}
