Volume collapsed three-manifolds with a lower curvature bound

@article{Shioya2003VolumeCT,
  title={Volume collapsed three-manifolds with a lower curvature bound},
  author={Takashi Shioya and Takao Yamaguchi},
  journal={Mathematische Annalen},
  year={2003},
  volume={333},
  pages={131-155}
}
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