1. Hazard algebras;Brzozowski;Formal Methods in System Design,2003
2. Gate circuits in the algebra of transients;Brzozowski;Theoretical Informatics and Applications,2005
3. Delay models for verifying speed-dependent asynchronous circuits;Burch,1992
4. Abstract interpretation: A unified lattice model for static analysis of programs by construction or approximation of fixpoints;Cousot,1977
5. Systematic design of program analysis frameworks;Cousot,1979