for PLOTtern FORTRAN - XY Plotter language based on FORTRAN by K. Kimura, et al of NTT ECL
K. Kimura and Y. Sasajima, "An XY Plotter Language (PL0TRAH) and Its Processor", Proc IPSJ llth Hat'l Conf. (Dec , 1970) view details
Toru Takeshita "SURVEY OF PROGRAMMING LANGUAGES IN JAPAN"
in First USA-Japan Computer Conference Proceedings, Tokyo, 1972. view details