On algebraic spaces with an action of Gm [DrinfeldActionGm]

@misc{drinfeld2015algebraicspacesactiongm,
      title={On algebraic spaces with an action of G_m}, 
      author={Vladimir Drinfeld},
      year={2015},
      eprint={1308.2604},
      archivePrefix={arXiv},
      primaryClass={math.AG},
      url={https://arxiv.org/abs/1308.2604}, 
}