The flow of control notations pancode and boxcharts
Dan Jönsson · ACM SIGPLAN Notices · 1990
The textual flow of control notation Pancode and the coresponding graphical notation Boxcharts are defined. These notations embody a new, unified control construct. The definitions given in this paper supersede those in "Pancode and Boxcharts: Structured Programming Revisited" (SIGPLAN Notices, 22, Aug. 1987, 89--98).