1. ‘The nested rectangular array as a model of data’, Proceedings of APL 79, APL Quote Quad 9, number 4, 55–73 (1979).
2. and (eds) The Q'Nial AI Toolkit, Nial Systems Ltd., Kingston, Canada, 1987.
3. and , ‘Programming styles in Nial’, IEEE Software Engineering, January 1986; also appears in the Proceedings of the 19th Hawaii International Conference on Systems Software, 1986.
4. ‘The principles of APL2’, Technical Report Tr 03.247, IBM Santa Teresa Lab, San Jose, California, March 1984.
5. Reference Manual: APL* Pius Nested Arrays System, STSC Inc, Bethesda, Maryland, 1981.