1. Hassan Aït-Kaci. A Lattice-Theoretic Approach to Computation Based on a Calculus of Partially-Ordered Type Structures. PhD thesis, University of Pennsylvania, Philadelphia, PA, USA, 1984.
2. Hassan Aït-Kaci. An algebraic semantics approach to the effective resolution of type equations. Theoretical Computer Science, 45:293–351, 1986.
3. Hassan Aït-Kaci, Robert Boyer, Patrick Lincoln, and Roger Nasr. Efficient implementation of lattice operations. ACM Transactions on Programming Languages and Systems, 11(1):115–146, January 1989.
4. Hassan Aït-Kaci and Patrick Lincoln. LIFE, a natural language for natural language. T. A. Informations, 1991. (To appear).
5. Hassan Aït-Kaci, Patrick Lincoln, and Roger Nasr. Le Fun: Logic, equations, and functions. In Proceedings of the Symposium on Logic Programming, pages 17–23, San Francisco, CA, USA, September 1987.