(en) George W. Maschke, « Polygraph Operator 'Dr.' Edward I. Gelb Exposed as a Phony Ph.D. », sur AntiPolygraph.org, (consulté le ), Gelb is a past president, executive director, and chairman of the board of the American Polygraph Association and in 1998 earned the association's Leonarde Keeler Award 'for long and distinguished service to the polygraph profession.