Wolfgang Händler

Wolfgang Händler (11 December 1920 in Potsdam – 19 February 1998) was a German mathematician, pioneering computer scientist and professor at Leibniz University Hannover (''Lehrstuhl für elektronische Rechenanlagen'') and University of Erlangen–Nuremberg (''Institut für Mathematische Maschinen und Datenverarbeitung'') known for his work on automata theory, parallel computing, artificial intelligence, man-machine interfaces and computer graphics.

* ''Händler diagram'' (aka ''Mⁿ graph'', , , , , '''') (1958) Provided by Wikipedia