1. Exact categories;Barr,1971
2. F. Borceux, A survey of semi-abelian categories, in: Janelidze et al. [35], pp. 27–60.
3. Mal’cev, protomodular, homological and semi-abelian categories;Borceux,2004
4. Galois theories;Borceux,2001
5. Normalization equivalence, kernel equivalence and affine categories;Bourn,1991