  
  
  [1XReferences[101X
  
  [[20XBar10[120X] [16XBarakat, M.[116X, [17XThe homalg package -- GAP4[117X (2007-2010), ((http://homalg.math.rwth-aachen.de/index.php/core-packages/homalg-package)).
  
  [[20XBL11[120X]  [16XBarakat,  M.  and  Lange-Hegermann,  M.[116X,  [17XAn  axiomatic  setup  for  algorithmic homological algebra and an alternative approach to
  localization[117X, [18XJ. Algebra Appl.[118X, [19X10[119X, 2 (2011), 269--293.
  
  [[20XBR06[120X]  [16XBarakat,  M.  and  Robertz,  D.[116X,  [17Xmathtthomalg: 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,
  ((http://homalg.math.rwth-aachen.de/maple/homalg_eaca06.pdf)).
  
  [[20Xhpa10[120X] [16Xhomalg project authors, T.[116X, [17XThe homalg project[117X (2003-2010), ((http://homalg.math.rwth-aachen.de/)).
  
  
  
  [32X
