Fogg N Pytheas <br/><br/>
Substitutions indynamic arithmetics and combinatorics 

 -  2002 
<br/><br/><label>Standard No.: </label>6031 
<br/><br/><label>Source: </label> Annuals, Advances 
<br/><br/><label>Dewey Class. No.: </label>B217, P2