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

Genken Programming Language

    (GPL) A variant of PL360 by K. Asai of the Japan
   Atomic Energy Research Institute.

   ["Experience With GPL", K. Asai, in Machine Oriented Higher
   Level Languages, W. van der Poel, N-H 1974, pp. 371-376].

   (1995-04-13)