Jacobo Carrasquel, Jim Roberts, John Pane. The design tree: a visual approach to top-down design and data flow. In Robert A. Barrett, Maynard J. Mansfield, editors, Proceedings of the 20st SIGCSE Technical Symposium on Computer Science Education, 1989, Louisville, Kentucky, USA, February 23-24, 1989. pages 17-21, ACM, 1989. [doi]
Abstract is missing.