TY  - BOOK
AU  - Bers,lipman, John, Fritz.
AU  - x
TI  - Partial differential equations: x
SN  - x
U1  - 517.383/BEP 
PY  - 1966///
CY  - N.Y.
PB  - Inteerscience pub
KW  - Calculus
N1  - x
ER  -