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

MPL1700-A High(er)-level Microprogramming Language. - Richard N. Fisher; Gordon W. McQuarrie (Softw. Pract. Exp., 1977)

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