The Free On-line Dictionary of Computing (30 December 2018):

Vlisp

   

   1. A Lisp dialect developed by Patrick Greussay
    in about 1973 with a fast interpreter and a
   portable virtual machine.  Vlisp introduced the
   "chronology", a dynamic environment for implementing
   interrupts.  It led to Le_Lisp.  See also ObjVlisp.

   ["Contribution a la Definition Interpretive et a
   l'Implementation des Lambda-Langages", P. Greussay, These
   d'Etat, U Paris VI, Nov 1977].

   [Relationship to Vincennes LISP?]

   2. Vincennes LISP.

   (2008-03-16)