Graham, S M <br/><br/>
The traveling salesman problem: a hierarchical model.  [electronic resource] 

 -  Memory & cognition  Oct 2000 
 - 1191-204 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. 
<br/><br/><label>ISSN: </label>0090-502X 
<br/><br/><label>Standard No.: </label>10.3758/bf03211820  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algorithms<br/>Artificial Intelligence<br/>Attention<br/>Discrimination Learning<br/>Humans<br/>Orientation<br/>Problem Solving<br/>Psychomotor Performance