TY  - BOOK
AU  - Petrovsky, I. G.
TI  - Integrable Systems
U1  - 517.38 PET 
PY  - 1991///
CY  - New York
PB  - :  Dover Publications
KW  - Lectures on partial differential equations
KW  - Differential equations, Partial
KW  - I. G. Petrovsky
KW  - Elinor Donation
ER  -