Hi,


I'm looking for a reference for the fact that the moduli stack $M\_{GL\_r,X}$ of $GL\_r$-bundles over $X$ is an algebraic (Artin) stack. I'm only interested in the case where $X$ is a curve (for now).


I think this is supposed to be in Laumon-Moret--Bailly's "Champs Algebriques", but my French is not so great and I have been unable to find it in there. If it is actually in there, can you help a non-Francophone out?


Thanks!



Reference for moduli stack of principal G-bundles?
I actually don't think$^{\dagger}$ that this example is in Laumon/Moret-Bailey, but Jonathan Wang's senior thesis is a detailed write up in the style of LMB (and in English!) of this fact: [thesis](http://jonathanpwang.com/writings/thesis.pdf) and the arXiv [link](https://arxiv.org/abs/1104.4828).


$^{\dagger}$ Edit: I stand corrected!


