1. Abstract and Concrete Categories;Adámek,1990
2. An Introduction to C*- Algebras;Arveson,1976
3. Tensor products and bimorphisms;Banaschewski;Cand. Math. Bull.,1976
4. A theory of quantale sets;Berni-Canani;J. Pure Appl. Algebra,1989
5. Introduction to bicategories;Bénabou,1967