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  [[20X1[120X]  [16XBorge,  I.  C.[116X,  [17XA  cohomological  approach  to  the  classification of
  p-groups[117X, Oxford (2001), http://eprints.maths.ox.ac.uk/40/.
  
  [[20X2[120X]  [16XCarlson,  J.  F.,  Townsley,  L.,  Valeri-Elizondo,  L.  and Zhang, M.[116X,
  [17XCohomology  rings of finite groups[117X, Kluwer Academic Publishers, Algebras and
  Applications, [19X3[119X, Dordrecht (2003), xvi+776 pages.
  
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