1. and , ‘A-machine specification’, ADA/RFM/0001, Christian Rovsing A/S, 1982.
2. Reference Manual for the Ada Language, United States Department of Defense, July 1982.
3. How to call procedures, or second thoughts on Ackermann's function
4. Interpretation and code generation based on intermediate languages
5. and , ‘Portable Ada programming system, compiler project overview’, Document no. DDC 02/1981–03–27, Danish Datamatics Centre, 1981.