References
  
  [GAP] GAP -- Groups, Algorithms, and Programming, Version 4.4.9, The GAP
  Group, Aachen, St Andrews (2006), ((http://www.gap-system.org)).
  
  [Lam85]   Lamport,   L.,   LaTeX:   A   Document   Preparation   System,
  Addison-Wesley (1985).
  
  [Neu07] Neunhöffer, M., IO, Bindings for low level C library IO, Version
  2.2                (2007),                ((GAP               package)),
  http://www-groups.mcs.st-and.ac.uk/~neunhoef/Computer/Software/Gap/io.html.
  
  
  
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