Giles, J.R <br/><br/>
Convex analysis with application in the differentiation of convex functions 
J.R. Giles 
 - Boston  Pitman Advanced Publishing Program  1982 
 - x  278 
 - Research notes in mathematics 58 .
<br/><br/><label>ISBN: </label>0273085379 
<br/><br/><label>Dewey Class. No.: </label>5.07  / GILE