TY  - BOOK
AU  - Katok Anatola
AU  - Strelcyn Jean-Marie
TI  - Invariant manifolds,entropy and billiards : smooth maps with singularsities
U1  - 514.224 
PY  - 1986///
CY  - Berlin
PB  - Springer-Verlag
KW  - Manifolds
KW  - Topology
ER  -