1. J. Foley, J. Templeman, and D. Dastyar, “Some Raster Graphics Extensions to the Core System,” Computer Graphics
13(2), pp. 15–24 (1979).
2. R. Lindner, “Rasterdisplay-Prozessoren — Ihre Bedeutung, Konzepte und Verfahren,” D17 Darmstadter Dissertation, Fachbereich Informatik, TH Darmstadt (1979). (In German.)
3. ISO WG2, “Graphical Kernel System (GKS) Version 6.6,” ISO TC97/SC5/WG2 (1981).