%0 Journal Article %A Laszlo, Yves %T Linearization of group stack actions and the Picard group of the moduli of $SL_r/\mu _s$-bundles on a curve %J Bulletin de la Société Mathématique de France %D 1997 %P 529-545 %V 125 %N 4 %I Société mathématique de France %U http://www.numdam.org/articles/10.24033/bsmf.2316/ %R 10.24033/bsmf.2316 %G en %F BSMF_1997__125_4_529_0