TY  - BOOK
AU  - Birkhoff, George
TI  - Dynamical systems
T2  - American Mathematical Society colloquium publications volume IX
U1  - 531.3 
PY  - 1960///
CY  - Providence
PB  - American Mathematical Society
KW  - DinÃ¡mica de sÃ³lidos
ER  -