TY  - BOOK
AU  - Lax, Peter D.
AU  - Berkowitz, J.
TI  - Partial differential equations, 1950-1951
T2  - Courant institute lecture notes
U1  - 515.35 
PY  - 0000///
CY  - New York
PB  - New York University
N1  - "Notes by J. Berkowitz"
ER  -