Tepas, D I <br/><br/>
Are stages of sleep really necessary?  [electronic resource] 

 -  Activitas nervosa superior  1969 
 - 82-9 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0001-7604 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Action Potentials<br/>Brain--physiology<br/>Electroencephalography<br/>Humans<br/>Sleep<br/>Sleep Stages<br/>Sleep, REM