- The Importance of being Nested, David Crossley, p.48
- My first date with IRMA, Graham Fieldsend, p.60
- APL for the Teacher, Dick Gray, p.79
- Guide to APL2 Nested Arrays, Norman Thomson, p.108
- Operators & Nested Arrays, John Scholes, p.117
- Power to APL, Per Hultin & Hagger, p.123
Test
