no. 2
Cohomology without projectives
Cahiers de Topologie et Géométrie Différentielle Catégoriques, Tome 48 (2007) no. 2, pp. 104-153. 
@article{CTGDC_2007__48_2_104_0,
     author = {Bourn, Dominique and Rodelo, Diana},
     title = {Cohomology without projectives},
     journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques},
     pages = {104--153},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {48},
     number = {2},
     year = {2007},
     mrnumber = {2336733},
     zbl = {1137.18007},
     language = {en},
     url = {http://archive.numdam.org/item/CTGDC_2007__48_2_104_0/}
}
TY  - JOUR
AU  - Bourn, Dominique
AU  - Rodelo, Diana
TI  - Cohomology without projectives
JO  - Cahiers de Topologie et Géométrie Différentielle Catégoriques
PY  - 2007
SP  - 104
EP  - 153
VL  - 48
IS  - 2
PB  - Dunod éditeur, publié avec le concours du CNRS
UR  - http://archive.numdam.org/item/CTGDC_2007__48_2_104_0/
LA  - en
ID  - CTGDC_2007__48_2_104_0
ER  - 
%0 Journal Article
%A Bourn, Dominique
%A Rodelo, Diana
%T Cohomology without projectives
%J Cahiers de Topologie et Géométrie Différentielle Catégoriques
%D 2007
%P 104-153
%V 48
%N 2
%I Dunod éditeur, publié avec le concours du CNRS
%U http://archive.numdam.org/item/CTGDC_2007__48_2_104_0/
%G en
%F CTGDC_2007__48_2_104_0
Bourn, Dominique; Rodelo, Diana. Cohomology without projectives. Cahiers de Topologie et Géométrie Différentielle Catégoriques, Tome 48 (2007) no. 2, pp. 104-153. http://archive.numdam.org/item/CTGDC_2007__48_2_104_0/

[1] M. Barr, Exact categories, Springer L.N. in Math., 236, 1971, pp 1-120. | Zbl

[2] F. Borceux and D. Bourn, Mal'cev, protomodular, homological and semi-abelian categories, Kluwer, Mathematics and its application, vol. 566, 2004, 479 pp. | MR | Zbl

[3] N. Bourbaki, Topologie Générale, Ch. III, Hermann, 1951.

[4] D. Bourn, The tower of n-groupoids and the long cohomology sequence, J. Pure Appl. Algebra, 62, 1989, 137-183. | MR | Zbl

[5] D. Bourn, Another denormalization theorem for abelian chain complexes, J. Pure Appl. Algebra, 66, 1990, 229-249. | MR | Zbl

[6] D. Bourn, Mal'cev categories and fibration of pointed objects, Applied Categorical Structures, 4, 1996, 307-327. | MR | Zbl

[7] D. Bourn, Baer sums and fibered aspects of Mal'cev operations, Cahiers de Top. et Géom. Diff. Catégoriques, 40, 1999, 297-316. | Numdam | MR | Zbl

[8] D. Bourn, Aspherical abelian groupoids and their directions, J. Pure Appl. Algebra, 168, 2002, 133-146. | MR | Zbl

[9] D. Bourn, Baer sums in homological catégories, J. Algebra, 308, 2007, 414-443. | MR | Zbl

[10] D. Bourn and M. Gran, Centrality and connectors in Maltsev categories, Algebra Universalis, 48, 2002, 309-331. | MR | Zbl

[11] A. Carboni, J. Lambek and M.C. Pedicchio, Diagram chasing in Mal'cev categories, J. Pure Appl. Algebra, 69, 1990, 271-284. | MR | Zbl

[12] A. Carboni, M.C. Pedicchio and N. Pirovano, Internal graphs and internal groupoids in Mal'cev categories, Canadian Math.Soc.Conference proceedings, vol.13, 1992, pp. 97-109. | MR | Zbl

[13] J.W. Duskin, Simplicial methods and the interpretation of triple cohomology, Memoirs Amer. Math. Soc., 163, 1975, pp. M R 52/14006. | Zbl

[14] P.G. Glenn, Realization of cohomology classes in arbitary exact categories, J. Pure Appl. Algebra, 25, 1982, 33-105. | MR | Zbl

[15] P. J. Hilton and U. Stammbach, A course in Homological Algebra, Springer, Graduate Texts in Math., 4, 1971. | MR | Zbl

[16] D. Holt, An interpretation of the cohomology groups Hn(G,M), J. Algebra, 60, 1979, 307-318. | MR | Zbl

[17] J. Huebschmann, Crossed n-fold extensions of groups and cohomology, Comment. Math. Helv., 55, 1980, 302-314. | MR | Zbl

[18] P.T. Johnstone, Affine categories and naturally Mal'cev categories, J. Pure Appl. Algebra, 61, 1989, 251-256. | MR | Zbl

[19] S. Mac Lane, Homology, Springer, 1963. | MR

[20] D. Rodelo, Direcções para a sucessão longa de co-homologia, Thesis, Coimbra, 2005.

[21] C.A. Weibel, An introduction to homological algebra, Cambridge Univ. Press, 1994. | MR | Zbl