TY  - GEN
AU  - Giacaglia,Giorgio E.O.
TI  - Perturbation methods in non-linear systems
T2  - Applied mathematical sciences,
SN  - 0387900543 (New York)
U1  - 510 
PY  - 1972///
CY  - London, New York
PB  - Allen and Unwin, Springer
KW  - Differential equations, Nonlinear
KW  - Perturbation (Mathematics)
N1  - Includes bibliographies and index
ER  -