Baer invariants in semi-abelian categories I: General theory.
Everaert, T. ; Van der Linden, T.
Theory and Applications of Categories [electronic only], Tome 12 (2004), p. 1-33 / Harvested from The Electronic Library of Mathematics
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Publié le : 2004-01-01
EUDML-ID : urn:eudml:doc:124763 
@article{02125639,
     title = {Baer invariants in semi-abelian categories I: General theory.},
     journal = {Theory and Applications of Categories [electronic only]},
     volume = {12},
     year = {2004},
     pages = {1-33},
     zbl = {1065.18011},
     language = {en},
     url = {http://dml.mathdoc.fr/item/02125639}
}

Everaert, T.; Van der Linden, T. Baer invariants in semi-abelian categories I: General theory.. Theory and Applications of Categories [electronic only], Tome 12 (2004) pp. 1-33. http://gdmltest.u-ga.fr/item/02125639/