Smith, Robert W. <br/><br/>
Fatigue behavior of materials under strain cycling in low a-nd intermediate life range / by Robert W. Smith, Marvin H. -Hirschberg and S. S. Manson. 

 - Washington, D. C. : National Aeronautics and Space Administration 
 - 56 p. 
 - Technical note; D-1574 / National Aeronautics and Space Adm-inistration .