TY - BOOK AU - Arnold,V.I & Novikov,S.P (eds) ED - Novikov, S.P TI - Dynamical systems IV: symplectic geometry & its applications T2 - Encyclopaedia of mathematical sciences 4 SN - 3540170030 U1 - 12.05 PY - 1990/// CY - Berlin PB - Springer ER -