1. Asp,J.: A description of the syntax and static semantics of Pascal using HLP (in Finnish). In preparation.
2. Burroughs Corp.: Burroughs B6700/B7700 Algol language reference manual. Burroughs Corporation, May 1974.
3. Gaine, Farber, Gordon, Inc.: S-Fortran language reference guide. Caine, Farber, Gordon, Inc., 1974.
4. CII Honeywell Bull: LALR(1) grammar for Ada. Unpublished computer listing, CII Honeywell Bull, 1979.
5. Dahl, O.-J., Myhrhaug, B. & Nygaard, K.: Simula 67 Common Base Language. Norwegian Computing Center, Oslo, 1968.