  
  
  [1XReferences[101X
  
  [[20XBar20[120X]  [16XBarakat,  M.[116X,  [17Xhomalg  --  A  homological  algebra meta-package for
  computable             Abelian            categories[117X            (2007-2020),
  (https://homalg-project.github.io/pkg/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,
  (https://arxiv.org/abs/math/0701146).
  
  [[20XGör08[120X]      [16XGörtzen,     S.[116X,     [17XGAP     Package     Gauss[117X     (2007-2008),
  (https://homalg-project.github.io/pkg/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
