Giloi, Wolfgang K. "On high-level programming systems for structured display programming"

[Proceedings] (1975) Computer Graphics 9(1) Spring, 1975 - includes Proceedings of the 2nd International Conference on Computer Graphics and Interactive Techniques, 1975, Bowling Green, Ohio   Wolfgang Giloi

Languages mentioned APLG {1972} APL with graphics extensions GRAP {1975} GRIP {1975} L4 {1974}