TY  - BOOK
AU  - LaSalle, Joseph P.,
ED  - International Symposium on Nonlinear Differential Equations and Nonlinear Mechanics
TI  - Nonlinear differential equations and nonlinear mechanics /
U1  - 517.9 
PY  - 1963///
CY  - New York
PB  - Academic Press
KW  - ECUACIONES DIFERENCIALES NO LINEALES
KW  - ECUACIONES DIFERENCIALES
KW  - OSCILACIONES
ER  -