1. Introduction to bicategories;Bénabou,1967
2. Les distributeurs;Bénabou,1973
3. Cauchy completion and the associated sheaf;Betti;Cahiers de Topologie et Géom. Diff.,1982
4. Notion of topology for bicategories;Betti;Cahiers de Topologie et Géom. Diff.,1983
5. Review of the elements of 2-categories;Kelly,1974