TY  - BOOK
AU  - Protter,Murray H.
TI  - Maximum principles in differential equations
SN  - 978038796068
U1  - 515.353 P946M 
PY  - 1984///
CY  - New York
PB  - Springer-Verlag
KW  - Elliptic equations
KW  - Parabolic equations
KW  - Hyperbolic equations
ER  -