1. Refinement Calculus: A Systematic Introduction;Back,1998
2. High Integrity Ada: The Spark Approach;Barnes,1997
3. The Ravenscar tasking profile for high integrity real-time programs;Burns,1998
4. Integrated program proof and worst-case timing analysis of SPARK Ada;Chapman,1994
5. The deadline command;Fidge;IEE Proceedings—Software,1999