Bugs from another planet?  [electronic resource] 

 -  Nature structural biology  Sep 1996 
 - 731-2 p.  digital 
<br/><br/> Publication Type: Editorial 
<br/><br/><label>ISSN: </label>1072-8368 
<br/><br/><label>Standard No.: </label>10.1038/nsb0996-731  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Exobiology<br/>Mars