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3. The Programming Language Ada Reference Manual. American National Standards Institute, Inc., ANSI/MIL-STD-1815A-1983.Lecture Notes in Computer Science, 155, Berlin-Heidelberg-New York-Tokyo: Springer-Verlag 1983.
4. Ammann, U. 1980. Vergleich einiger Konzepte moderner Echtzeitsprachen. 6 Fachtagung der GI über Programmiersprachen und Programmentwicklung, Darmstadt 1980.Informatik-Fachberichte, 25, pp. 1–18, Berlin-Heidelberg-New York: Springer-Verlag 1980.
5. ANSI/IEEE Standard 716-1985: C/ATLAS Test Language. Washington, D.C.: The Institute of Electrical and Electronics Engineers, Inc. 1985.