COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses. XIII. Time delays and 9-yr optical monitoring of the lensed quasar RX J1131-1231
Journal article published in 2013 by
M. Tewes,
F. Courbin,
G. Meylan,
C.~S Kochanek,
E. Eulaers,
N. Cantale,
A.~M Mosquera,
P. Magain,
H. Van Winckel,
D. Sluse,
G. Cataldi,
D. Vörös,
S. Dye 
