[1XReferences[101X
[[20XBar[120X] [16XBarakat, M.[116X, [17XSpectral Filtrations via Generalized Morphisms[117X, [18X[118X, [19X[119X, (), ,
((arxiv.org/abs/0904.0240)).
[[20XBar10[120X] [16XBarakat, M.[116X, [17XThe homalg package -- GAP4[117X (2007-2010),
((http://homalg.math.rwth-aachen.de/index.php/core-packages/homalg-package)).
[[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)).
[32X