TY  - BOOK
AU  - Kawohl Bernhard
TI  - Rearrangements and convexity of level sets in PDE
T2  - Lecture notes in mathematics; 1150
U1  - B334, M5 
PY  - 1985///
CY  - Berlin
PB  - Springer Verlag        
N1  - Bibliography 123-134p
ER  -