Thomas, P C <br/><br/>
North-south geological differences between the residual polar caps on Mars.  [electronic resource] 

 -  Nature  Mar 2000 
 - 161-4 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. 
<br/><br/><label>ISSN: </label>0028-0836 
<br/><br/><label>Standard No.: </label>10.1038/35004528  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Carbon Dioxide--analysis<br/>Evolution, Planetary<br/>Extraterrestrial Environment<br/>Mars