Information processing systems; computer graphics; Programmer's Hierarchical Interactive Graphics System (PHIGS); part 1: functional description (ISO/IEC 9592-1:1989, edition 1); english version EN 29592-1:1991— 395 стр.
Information processing systems; computer graphics; graphical kernel system for three dimensions (GKS-3D) functional description; identical with ISO 8805:1988— 396 стр.
Information technology, computer graphics and image processing - Graphical Kernel System (GKS) - Part 1: Functional description (ISO/IEC 7942-1:1994); English version EN ISO/IEC 7942-1:1995— 176 стр.
