Mordukhovich, B. S. <br/><br/>
Variational analysis and generalized differentiation I  basic theory 
B. S. Mordukhovich 
 - Berlin  Springer  2013 
 - xxii, 579p 
 - A series of comprehensive studies in mathematics    330 .
<br/><br/><label>ISBN: </label>9783642064821  E44.99