. . "An investigation of the fatigue of metals; a report of the investigation conducted by the Engineering Experiment Station, University of Illinois, in coöperation with the National Research Council, the Engineering Foundation, the General Electric Company, the Allis-Chalmers Manufacturing Company, the Copper and Brass Research Association, the Western Electric Company"@en . . . . . . . . . . . . . . . . . "Fatigue of metals"@en . . . . . . . "Copper & Brass Research Association (U.S.)" . .