1. and , ‘Deterministic parsing of ambiguous grammars’, ACM Symposium on Principles of Programming Languages, ACM, New York, 1973.
2. ‘Ambiguity and precedence in syntax description’, Technical Report 13, Dept. of Electrical Engineering and Computer Sciences, University of California, Berkeley, 1973.
3. ‘An algebraic proof of correctness of a partial parser for an inherently ambiguous language’, to be submitted for publication.
4. ‘An APL machine’, Technical Report 3, Stanford Electronics Lab., Stanford, 1970.
5. Does APL really need run-time checking?