Baer invariants in semi-abelian categories II: Homology. Everaert, T.; Van der Linden, T. — 2004 Theory and Applications of Categories [electronic only]
Baer invariants in semi-abelian categories I: General theory. Everaert, T.; Van der Linden, T. — 2004 Theory and Applications of Categories [electronic only]
Weak cofibrations in categories of cofibrant objects. Kieboom, R.W.; Sonck, G.; Van der Linden, T.; Witbooi, P.J. — 2003 Homology, Homotopy and Applications
Model structures for homotopy of internal categories. Everaert, T.; Kieboom, R.W.; Van der Linden, T. — 2005 Theory and Applications of Categories [electronic only]