1. Cohomologieétale des schémas;Artin,1963
2. Exact categories;Barr,1971
3. Algebra in a Localic Topos with Applications to Ring Theory;Borceux,1983
4. On locales of localizations;Borceux;J. Pure Appl. Algebra,1987
5. F. Borceux and B. Veit, Subobject classifier for algebraic structures, submitted for publication.