Ogata, A <br/><br/>
Theory of Dispersion in a Granular Medium 

 - U.S. government Printing Office  Washington  1970 
 - 134p.  fig. 
<br/><br/><label>Nat. Bib. No.: </label>4461 
<br/><br/><label>Universal Decimal Class. No.: </label>532.5  / OGA