TY  - BOOK
AU  - Kovacic,Ivana
AU  - Brennan,Michael J.
TI  - The Duffing equation: nonlinear oscillators and their phenomena 
SN  - 9780470715499
PY  - 2011///
CY  - Chichester, West Sussex, U. K., Hoboken, N. J.
PB  - Wiley
KW  - Duffing equations
KW  - Nonlinear oscillators
KW  - Mathematical models
N1  - Includes bibliographical references and index
ER  -