TY - BOOK AU - Zakharov, V.E., ed. TI - What is integrability? T2 - Springer series in nonlinear dynamics SN - 0387519645 U1 - 530.1/55353 PY - 1991/// CY - New York PB - Springer-Verlag KW - Differential equations, Partial--Numerical solutions KW - Hamiltonian systems KW - Nonlinear theories KW - Mathematical physics ER -