1. A syntax directed compiler for ALGOL 60
2. COBOL-1961-Revised specifications for a common business oriented language. U. 8. Government Printing Orifice Washington D. C. 1961 O-598941. Certain terminology and definitions are taken from this document without reference to any subsequent amendments thereto. COBOL-1961-Revised specifications for a common business oriented language. U. 8. Government Printing Orifice Washington D. C. 1961 O-598941. Certain terminology and definitions are taken from this document without reference to any subsequent amendments thereto.
3. Handling identifies as internal symbols in language processors
4. On The Ambiguity Problem of Backus Systems
5. A Translator-Oriented Symbolic Programming Language