COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses - VI. Redshift of the lensing galaxy in seven gravitationally lensed quasarsA. Eigenbrod, F. Courbin and G. MeylanA&A, 465 1 (2007) 51-56DOI: https://doi.org/10.1051/0004-6361:20066939
