Thanks to Doug and Warren for getting Brenda Baker's memo on struct online at https://www.tuhs.org/Archive/Documentation/TechReports/Baker_Struct/bsbstru… She later published a formal article about that work in An Algorithm for Structuring Flowgraphs Journal of the Association for Computing Machinery 24(1) 98--120 January 1977 https://doi.org/10.1145/321992.321999 ------------------------------------------------------------------------------- - Nelson H. F. Beebe Tel: +1 801 581 5254 - - University of Utah FAX: +1 801 581 4148 - - Department of Mathematics, 110 LCB Internet e-mail: beebe(a)math.utah.edu - - 155 S 1400 E RM 233 beebe(a)acm.org beebe(a)computer.org - - Salt Lake City, UT 84112-0090, USA URL: http://www.math.utah.edu/~beebe/ - -------------------------------------------------------------------------------