A list of papers about category theory and database: I- Papers by Peter Buneman, Val Tannen and others in Univ. of Pennsylvania. Using theory of monads for query languages. see references in their paper: Principle of Programming with Complex objects and Collection Types. TCS 149:3-48, 1995. II- Paper by S.K. LELLAHI, Nicolas Spyratos: Using sketch for modelling data 1- Towards a categorical Data Model supporting structured Object and Inheritance. LCNS NO 504, pp 86-105, 1991 2- Categorical Modelling of database concepts. Technical report Series, FIDE/92/ 38, University of Glasgow 1992 3- Deduction over graphs under constraint: A soundness and completness theorem. Diagramme vol 39, 1993 (edited by: Univ Paris 7, France). 4- Research reports, NOs 619, 410, 908 LRI, Univ. Paris 11 (Orsay), France. 5- Research reports, NO, 93-05 An Algebraic Semantics for Data Modelling under constraints LIPN, Univ. Paris 13 Villetaneuse), France. III- Paper by S.K. LELLAHI, Monads and query languages 1- Towards a Characterization of Bulk types, Research reports, NOs , LIPN, Univ. Paris 13 Villetaneuse), France. 2- Type de collection et Monades. Acte des journees Categories, Algebres, Esquisses et Neo_esquisses, 1994, Univ. de CAEN, France IV- Others 1- E. Lippe & al a) A Category theory approach to coceptual data Modelling, Theorical information and Application, vol 30, nO 1, 1966, pp 31_97. b) Conceptual data modelling from a Categorical Perspective. The Computer Journal, Vol 39, No 3 1966. ------------------------------------------------------- Kazem LELLAHI