TY  - BOOK
AU  - Protter,Murray H.
AU  - Weinberger,Hans F.
TI  - Maximum principles in differential equations
U1  - 515.35 
PY  - 1967///]
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Differential equations, Partial
KW  - Maximum principles (Mathematics)
N1  - Bibliography: p. 240-255
ER  -