Kawohl Bernhard <br/><br/>
Rearrangements and convexity of level sets in PDE 
Kawohl Bernhard 
 - Berlin  Springer Verlag          1985 
 - 134p.  cm. 
 - Lecture notes in mathematics; 1150 .
<br/><br/> Bibliography 123-134p. 
<br/><br/><label>Standard No.: </label>22698 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B334, M5