When is the Cuntz–Krieger algebra of a higher-rank graph approximately finite-dimensional?

@article{Evans2011WhenIT,
  title={When is the Cuntz–Krieger algebra of a higher-rank graph approximately finite-dimensional?},
  author={D. Gwion Evans and Aidan Sims},
  journal={Journal of Functional Analysis},
  year={2011},
  volume={263},
  pages={183-215}
}
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