  
  
  [1XReferences[101X
  
  [[20XBar20[120X]   [16XBarakat,   M.[116X,   [17XThe   homalg   package   --   GAP4[117X   (2007-2020),
  ((https://homalg-project.github.io/homalg_project/homalg/)).
  
  [[20XBR06[120X]  [16XBarakat,  M.  and  Robertz,  D.[116X,  [17Xhomalg: First steps to an abstract
  package  for  homological  algebra[117X,  in  Proceedings  of  the  X  meeting on
  computational  algebra  and  its  applications  (EACA 2006), Sevilla (Spain)
  (2006),                                                              29--32,
  ((https://www.algebra.mathematik.uni-siegen.de/barakat/eaca/homalg_eaca06.pdf)).
  
  [[20XBR08[120X] [16XBarakat, M. and Robertz, D.[116X, [17Xhomalg -- A Meta-Package for Homological
  Algebra[117X, [18XJ. Algebra Appl.[118X, [19X7[119X, 3 (2008), 299--317, ((arXiv:math.AC/0701146)).
  
  [[20XGör08[120X]      [16XGörtzen,     S.[116X,     [17XGAP     Package     Gauss[117X     (2007-2008),
  ((http://wwwb.math.rwth-aachen.de/goertzen/Gauss)).
  
  [[20XLN08[120X]  [16XLübeck,  F.  and  Neunhöffer,  M.[116X,  [17XGAP  Package GAPDoc[117X (2007-2008),
  ((http://www.math.rwth-aachen.de/~Frank.Luebeck/GAPDoc)).
  
  
  
  [32X
