Russell, A M <br/><br/>
"Life" in an abstract world.  [electronic resource] 

 -  Science (New York, N.Y.)  Aug 1990 
 - 843-4 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0036-8075 
<br/><br/><label>Standard No.: </label>10.1126/science.249.4971.843-d  doi