1. The existence of refinement mappings;Abadi;Theoret. Comput. Sci.,1991
2. Composing specifications;Abadi;ACM Trans. Programming Languages Systems,1993
3. Refinements calculus, lattices and higher order logic;Back,1993
4. Now you may compose temporal logic specifications;Barringer,1984
5. Parallel Program Design — A Foundation;Chandy,1988