A power-law distribution of phase-locking intervals does not imply critical interaction. Botcharova, M., Farmer, S., & Berthouze, L. arXiv preprint arXiv:1208.2659, 2012.
bibtex   
@article{ Botcharova_Farmer12,
  author = {Botcharova, M. and Farmer, S.F. and Berthouze, L.},
  title = {A power-law distribution of phase-locking intervals does not imply
	critical interaction},
  journal = {arXiv preprint arXiv:1208.2659},
  year = {2012}
}

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