1. Wayne Ratliff ca. 1980. CP/M port of JPLDIS which evolved
into dBASE II.
2. The dBASE-like interpreter and compiler sold by RSPI with
their Emerald Bay product. [same as 1?]
3. Early string manipulation language. "VULCAN - A String
Handling Language with Dynamic Storage Control", E.P. Storm et
al, Proc FJCC 37, AFIPS (Fall 1970).
4. Kahn et al, Xerox PARC. Concurrent object orientation and
logic programming. An object-oriented preprocessor for FCP.
"Vulcan: Logical Concurrent Objects", K. Kahn et al in
Research Directions in Object- Oriented Programming,
A.B. Shriver et al eds, MIT Press 1987.