TY  - BOOK
AU  - Cunningham,Walter Jack
TI  - Introduction to nonlinear analysis
T2  - McGraw-Hill electrical and electronic engineering series
U1  - 517.38207 
PY  - 1958///
CY  - New York, N.Y.
PB  - McGraw-Hill
KW  - ECUACIONES DIFERENCIALES NO LINEALES
ER  -