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D. Gaitsgory, On a Vanishing Conjecture Appearing in the Geometric Langlands Correspondence, math.AG/0204081.
G. Laumon, Faisceaux automorphes pour GLn: la premi`ere construction de Drinfeld, alg-geom/9511004.
G. Laumon, Travaux de Frenkel, Gaitsgory et Vilonen sur la correspondance de Drinfeld-Langlands, (French) [Works of Frenkel, Gaitsgory and Vilonen on the Drinfeld-Langlands correspondence] Séminaire Bourbaki. Vol. 2001/2002. Astérisque No. 290 (2003), Exp. No. 906, ix, 267--284, math.AG/0207078.
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I. Mirkovic and K. Vilonen, Geometric Langlands Duality and Representations of Algebraic Groups over Commutative Rings, math.RT/0401222.