Klein, K E <br/><br/>
Circadian rhythm in indices of human performance, physical fitness and stress resistance.  [electronic resource] 

 -  Aerospace medicine  May 1968 
 - 512-8 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0001-9402 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aerospace Medicine<br/>Body Temperature<br/>Circadian Rhythm<br/>Ergonomics<br/>Female<br/>Heart Function Tests<br/>Humans<br/>Male<br/>Oxygen Consumption<br/>Physical Fitness--standards<br/>Stress, Physiological--physiopathology