TY  - BOOK
AU  - Ostrovsky, Lev
TI  - Asymptotic perturbation theory of waves
SN  - 9781848162358
U1  - 531.113301 
PY  - 2015///
CY  - London
PB  - Imperial College Press
KW  - Nonlinear wave equation
KW  - Perturbation
ER  -