  
  
  [1XReferences[0X
  
  [[20XBR08[15X]  [16XBarakat,  M.  and  Robertz,  D.[15X,  [17Xhomalg  --  A Meta-Package for
  Homological   Algebra[15X,   [18XJ.   Algebra  Appl.[15X,  [19X7[15X,  3  (2008),  299--317,
  ((arXiv:math.AC/0701146)).
  
  [[20XMR01[15X]  [16XMcConnell,  J.  C.  and Robson, J. C.[15X, [17XNoncommutative Noetherian
  rings[15X,  American Mathematical Society, Revised edition, Graduate Studies
  in  Mathematics,  [19X30[15X,  Providence,  RI  (2001), xx+636 pages, ((With the
  cooperation of L. W. Small)).
  
  
  
  -------------------------------------------------------
