00602nam a22002057a 4500 SNU 20150619105747.0 150617b xxu||||| |||| 00| 0 eng d Elinor Donation USA 517.38 PET Petrovsky, I. G. Integrable Systems / I. G. Petrovsky New York : Dover Publications , 1991. x, 245 p : ill. , 22 cm. Lectures on partial differential equations Differential equations, Partial. I. G. Petrovsky Elinor Donation ddc BOOK 43212 43212 0 0 ddc 0 0 SNUL SNUL 2015-06-19 Elinor Donation 0.00 0 517.38 PET 16959 2015-06-19 00:00:00 2015-06-19 BOOK