2013-05-292013-05-292010Biswas, I. & Hoffmann, N.(2010), 'The Line on Moduli Stacks of Principal Bundles on a Curve', Documenta Mathematica, Vol. 15, p 35-72.http://www.math.uni-bielefeld.de/documenta/vol-15/02.htmlhttp://hdl.handle.net/10395/1913Let G be an affine reductive algebraic group over an algebraically closed field k. We determine the Picard group of the moduli stacks of principal G–bundles on any smooth projective curve over k.engThis article was originally published in Documenta Mathematica,(2010) Vol. 15 and is available through the following link http://www.math.uni-bielefeld.de/documenta/index.htmlPrincipal bundleModuli stackPicard groupArticle