The specification of visual language syntax

Statecharts: a visual formalism for complex systems

David Harel · Science of Computer Programming · 1987 · 6.7K citations

Engineering, Systems Engineering, Complex Systems +10

Semantics of context-free languages

Donald E. Knuth · Theory of Computing Systems · 1968 · 2K citations

Computing, Computer Science, Formal Methods +9

Yacc : Yet Another Compiler Compiler

S. C. Johnson, Murray Hill · 1978 · 1.2K citations

Computing, Computer Science, Compilers +9

A formal picture description scheme as a basis for picture processing systems

Alan Shaw · Information and Control · 1969 · 250 citations · Full text

Computing, Computer Science, Computer Graphics +12

Pict: An Interactive Graphical Programming Environment

Glinert, Tanimoto · Computer · 1984 · 227 citations

Computing, Computer Science, Computer Graphics +8