Ziemer, William P. <br/><br/>
Weakly differentiable functions :  sobolev spaces and functions of bounded variation / 
William P. Ziemer. 
 - [S.l.] :  Springer,  1989. 
 - 348 p. ;  24 cm. 
 - Graduate texts in mathematics. .
 - Graduate texts in mathematics. .
<br/><br/><label>ISBN: </label>0387970177 9780387970172 
<br/><br/><label>Dewey Class. No.: </label>515.73