TY  - BOOK
AU  - John, Fritz 
TI  - Partial differential equations
SN  - 9780387906096
U1  - 515.353 J6131p4 
PY  - 1982///
CY  - New York
PB  - Springer
KW  - Differential equations
KW  - Partial
KW  - Mathematics
ER  -