Languages:

• CTL (1972)
• FGL (1979) Function Graph Language.
• FGL (1979) Flow Graph Lisp
• FGRAAL (1972) Fortran Graph extensions
• GASP (1969) PL/I extension for programming graph algorithms
• G-Code (1984)
• GEA (1968) Graph Extended ALGOL
• GIRL (1969)
• GRAPPLE (1968)
• HINT (1969) Hierarchical information language
• IF1 (1985)
• IF2 (1986) Graph language used by the OSC SISAL compiler
• Lean (1987)
• Lygon (1995) Linear Logic Programming Language
• NPPL (1969)
• PIRL (1971)
• PROGRES (1990) Graph based programming language
• SEL (1990)
• SISAL (1983) Streams and Iteration in a Single Assignment Language