Ex. FRAF: An extensible language including graphical operations

Armit, 1972, A Language for Interactive Design Baskin, 1968, A Multilevel Modelling Structure for Interactive Graphic Design, IBM Systems J, 7, 218, 10.1147/sj.73.0218 Boehm, 1969, POGO: Programmer Oriented Graphics Operation, Vol. 34, 321 Branquart, 1971, The Composition of Semantics in Algol 68, Comm. ACM, 14, 697, 10.1145/362854.362874 Gnatz, 1972, On Basic Concepts of Higher Graphic Languages Hagan, 1968, The Adage Graphics Terminal, Vol. 33, 747 Hatvany, 1972, Do Graphic Languages Need to be Problem Oriented? Kulsrud, 1968, A General-Purpose Graphics Language, Comm. ACM, 11, 247, 10.1145/362991.363003 Newey, 1968, An Efficient System for User Extendible Languages, Vol. 33, 1339 Newman, 1971, Display Procedures, Comm. ACM, 14, 651, 10.1145/362759.362808 Rully, 1968, Subroutine Package for FORTRAN, IBM Systems J, 7, 248, 10.1147/sj.73.0248 Schwinn, 1967, A Problem-Oriented Graphic Language, 471 Smith, 1971, GPL/I-A PL/I Extension for Computer Graphics, Vol. 38, 511 Sutherland, 1963, SKETCHPAD: A Man-Machine Graphical Communication System, Vol. 23, 329 Wegbreit, 1971, The Treatment of Data Types in ELI Wegbreit, 1971, The ECL Programming System, Vol. 39, 253 1969, 14, 79 Williams, 1971, A Survey of Data Structures for Computer Graphics Systems, Computing Surveys, ACM, 3, 1, 10.1145/356583.356584 Williams, 1971, A Systematic Method for the Creation of Data Structures in Computer Graphics Applications Williams, 1972, A General Purpose Graphical Language Wirth, 1966, EULER: A Generalization of ALGOL and its Formal Definition: Pt. 1, 9, 13 Wirth, 1966, EULER: A Generalization of ALGOL and its Formal Definition: Pt. 2, Comm. ACM, 9, 89, 10.1145/365170.365202 1969