TY  - BOOK
AU  - Petrovsky,I G.
AU  - Shenitzer,A.
TI  - Lectures on partial differential equations / 
SN  - 0486669025
U1  - 515.353 
PY  - 1991///
CY  - New York : 
PB  - Dover Publications , 
KW  - DIFFERENTIAL EQUATIONS,PARTIAL
N1  - NULL
ER  -