1. An APL Machine;Abrams,1970
2. The history of FORTRAN I, II, and III;Backus,1981
3. The FORTRAN automatic coding system;Backus,1957
4. Does APL really need run-time checking?;Bauer;Software—Practice and Experience,1974
5. Implementing Russell;Boehm;ACM SIGPLAN Notices,1986