Brown, W. S.; and Hall, A. D. "FORTRAN portability via models and tools" pp158-164

Portability of numerical software (Workshop, Oak B (1977) Portability of numerical software (Workshop, Oak Brook, 111., 1976), Lecture notes in computer science, Vol. 57, Springer-Verlag, New York, 1977  

Languages mentioned ALTRAN {1969} A FORTRAN extension for rational algebra Pfortran {1992}