Some proposals for SNAP, a language with formal macro facilities. - R. B. E. Napper (Comput. J., 1967)

The need to revise the Compiler Compiler. - R. B. E. Napper (IFIP Congress (1), 1968)

ALEC - A User Extensible Scientific Programming Language. - R. B. E. Napper; Richard N. Fisher (Comput. J., 1976)

RCC - A User-Extensible Systems Implementation Language. - R. B. E. Napper; Richard N. Fisher (Comput. J., 1980)

The Birth of the Baby. - Hilary J. Kahn; R. B. E. Napper (ICCD, 2000)