@article{ refId0,
	author = {{Agúndez, M.} and {Cernicharo, J.} and {Guélin, M.} and {Gerin, M.} and {McCarthy, M. C.} and {Thaddeus, P.}},
	title = {Search for anions in molecular sources: C$_4$H$^-$ detection in
L1527},
	DOI= "10.1051/0004-6361:20078985",
	url= "http://dx.doi.org/10.1051/0004-6361:20078985",
	journal = {A&A},
	year = 2008,
	volume = 478,
	number = 1,
	pages = "L19-L22",
	month = "",
}