An optical time-delay for the lensed BAL quasar HE 2149-2745
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G. Meylan | J. Kneib | F. Courbin | P. Magain | G. Letawe | J. Hjorth | A. Jaunsen | I. Burud | C. Lidman | L. Germany | E. Pompei | J. Pritchard | C. Lidman | J. Brewer | D. Hutsemékers