@article{ER09,
  AUTHOR = {Eick, Bettina and Rossmann, Tobias},
   TITLE = {Periodicities for graphs of $p$-groups beyond coclass},
    YEAR = {2009},
    NOTE = {Preprint},
}


@book {KLGP97,
    AUTHOR = {Klaas, G. and Leedham-Green, C. R. and Plesken, W.},
     TITLE = {Linear pro-{$p$}-groups of finite width},
    SERIES = {Lecture Notes in Mathematics},
    VOLUME = {1674},
 PUBLISHER = {Springer-Verlag},
   ADDRESS = {Berlin},
      YEAR = {1997},
     PAGES = {viii+115},
      ISBN = {3-540-63643-9},
}

@manual{ANU06,
        KEY = {ANUPQ},
     AUTHOR = {Eamonn O'Brien and Werner Nickel and Greg Gamble},
      TITLE = "ANUPQ --- A GAP4 Package, Version 3.0",
       YEAR = 2006,
}
