Ziemer, William P. <br/><br/>
Weakly differentiable functions sobolev spaces and functions of bounded variation  / 

 - New York:  Springer-Verlag,  1989 
 - xvi, 308p. Bibl. Index. 
 - Graduate texts in Mathematics ;  v. 120 .
<br/><br/><label>Dewey Class. No.: </label>515.7  / Z66.WD