1. Ada. The Programming Language ADA — Reference Manual. American National Standards Institute, Inc. ANSI/MIL-STD-1815A-1983, LNCS, 155, Springer-Verlag, 1983, 1983.
2. unknown. Ada 9x requirements working draft version 3.3. Technical report, Software Engineering Institute, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, 1990.
3. Ada 9X Project Report, Ada 9X Requirements, Office of the Under Secretary of Defense for Acquisition, Washington, D. C. 20301, December 1990, Carnegie Mellon University, 1990
4. S. Arévalo and A. Alvarez. Fault Tolerant Distributed Ada. ACM Ada LETTERS, Vol. IX, No. 5, July 1989, pages 54–59, 1989.
5. A. Ardö and L. Lundberg. The MUMS Multiprocessor Ada Project. In Distributed Ada 1989, Proceedings of the Symposium, 1989.