COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses - XIII. Time delays and 9-yr optical monitoring of the lensed quasar RX J1131−1231
, , , , , , , , ,A&A, 556 (2013) A22
Published online: 19 July 2013
DOI: 10.1051/0004-6361/201220352