TY  - BOOK
AU  - Godbillon, C.
AU  - Helfenstein, H. G. ; tr.
TI  - Dynamical systems on surfaces
T2  - Universitext
U1  - 515.35 
PY  - 1983///
CY  - Berlin
PB  - Springer-Verlag
N1  - "Tr. from the French by H. G. Helfenstein"
ER  -