1. On semantic foundations for applicative multiprogramming;Abramsky,1983
2. Proof rules and transformations dealing with fairness;Apt;Sci. Comput. Programming,1983
3. A Cook's tour of countable nondeterminism;Apt,1982
4. Countable nondeterminism and random assignment;Apt;J.ACM,1986
5. Mathematical Theory of Program Correctness;de Bakker,1980