TY  - BOOK
AU  - Ziemer, William P.
TI  - Weakly differentiable functions: sobolev spaces and functions of bounded variation
T2  - Graduate texts in mathematics
SN  - 0387970177
U1  - 515.73 
PY  - 1989///
CY  - New York
PB  - Springer-Verlag
ER  -