Hormander, Lars. <br/><br/>
Notions of convexity   
by Lars Hormander 
 - Boston  Birkhauser  1994 
 - viii, 414p. 
 - Progress in Mathematics  V.127 .
<br/><br/><label>ISBN: </label>0817637990 
<br/><br/><label>Dewey Class. No.: </label>515.94  / N94