# fwtree : a GAP 4 package - References

[ER09]
  Bettina Eick and Tobias Rossmann.
  Periodicities for graphs of p-groups beyond coclass.
  2009.
  Preprint.
[KLGP97]
  G. Klaas, C. R. Leedham-Green, and W. Plesken.
  Linear pro-p-groups of finite width, volume 1674 of Lecture Notes in Mathematics.
  Springer-Verlag, Berlin, 1997.
[ANU06]
  Eamonn O'Brien, Werner Nickel, and Greg Gamble.
  ANUPQ --- A GAP4 Package, Version 3.0, 2006.

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