1. Burns, A., Lister, A.M., and Wellings, A.J. 1987. A Review of Ada Tasking. In Lecture Notes in Computer Science, 262, New York: Springer-Verlag.
2. Burns, A., and Wellings, A.J. 1990. Real-Time Systems and Their Programming Languages, New York: Addison Wesley.
3. Burns, A. 1990. Distributed Hard Real-Time Systems: What Restrictions are Necessary? In Real-Time Systems Theory and Applications, ed. H.Zedan, New York: Elsevier Scientific.
4. U.S. Department of Defense. 1983. Reference Manual for the Ada Programming Language. ANSI/MIL-STD 1815 A.
5. INMOS_LImited. 1984. Occam Programming Manual, London: Prentice Hall.