R. Street, Ideals, radicals, and structure of additive categories, Applied Categorical Structures 3 (1995), 139-149.
S. Sun, A. Dhillon, Prime spectra of additive categories, Journal of Pure and Applied Algebra 122 (1997), 135-157
C. Cassidy, M. Hébert, G. M. Kelly, Reflective subcategories, localizations and factorization systems, J. Austral. Math. Soc. Ser. A 38 (1985), no. 3, 287–329, MR86j:18001; Corrigenda: “Reflective subcategories, localizations and factorization systems’’, J. Austral. Math. Soc. Ser. A 41 (1986), no. 2, 286, MR87f:18001
Joachim Lambek, Torsion theories, additive semantics, and rings of quotients, with app. by H. H. Storrer on torsion theories and dominant dimensions. Lecture Notes in Mathematics 177, Springer-Verlag 1971, vi+94 pp. MR284459
Francis Borceux, Carmen Quinteiro, A theory of enriched sheaves, Cahiers de Topologie et Géométrie Différentielle Catégoriques 37 no. 2 (1996), p. 145-162, numdam
Francis Borceux, Sheaves of algebras for a commutative theory, Ann. Soc. Sci. Bruxelles Sér. I 95 (1981), no. 1, 3–19, MR83c:18006; Sur les localisations algébriques, Preprint, Rapp. Sém. Math. Pures, Univ. Louvain, Louvain, Belgium, 1981; On algebraic localizations, MR84c:18007, in Category theory (Gummersbach, 1981), pp. 13–22, Lecture Notes in Math. 962, Springer 1982.
Francis Borceux, Gilberte Van Den Bossche, Recovering a frame from its sheaves of algebras, Journal of Pure and Applied Algebra 28, 2, May 1983, 141-154, doi; Algebra in a localic topos with applications to ring theory, Lecture Notes in Mathematics 1038, Springer-Verlag, Berlin, 1983. ix+240 pp. MR85h:18005
A. L. Rosenberg, Almost quotient categories, sheaves and localizations, 181 p. Seminar on supermanifolds 25, University of Stockholm, D. Leites editor, 1988