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2. Differentiable stacks and gerbes;Behrend,2006
3. -bundles and gerbes over differentiable stacks;Behrend;Comptes Rendus Mathematique Academie des Sciences Paris,2003
4. Groups and groupoids in higher categories;Blohmann
5. Hopfish structure and modules over irrational rotation algebras;Blohmann;Contemporary Mathematics,2006