@article {Fray:2009:0038-6308:225,
	author = "Fray, Sebastian and Weitz, Martin",
	title = "Atom-Based Test of the Equivalence Principle",
	journal = "Space Science Reviews",
	volume = "148",
	number = "1-4",
	year = "2009",
	pages = "225-232",
	url = "http://www.ingentaconnect.com/content/klu/spac/2009/00000148/F0040001/00009566",
	doi = "doi:10.1007/s11214-009-9566-x"
}

@article {Kolachevsky:2009:0038-6308:267,
	author = "Kolachevsky, N. and Matveev, A. and Alnis, J. and Parthey, C. and Steinmetz, T. and Wilken, T. and Holzwarth, R. and Udem, T. and Hansch, T.",
	title = "Testing the Stability of the Fine Structure Constant in the Laboratory",
	journal = "Space Science Reviews",
	volume = "148",
	number = "1-4",
	year = "2009",
	pages = "267-288",
	url = "http://www.ingentaconnect.com/content/klu/spac/2009/00000148/F0040001/00009564",
	doi = "doi:10.1007/s11214-009-9564-z"
}