TY  - DATA
AU  - Iooss, Gerard.
AU  - Plotnikov, Pavel I.
TI  - Small divisor problem in the theory of three-dimensional water gravity waves 
T2  - Memoirs of the American Mathematical Society, 
SN  - 9781470405540 (online)
PY  - 2009///
CY  - Providence, R.I.
PB  - American Mathematical Society
UR  - http://www.ams.org/memo/0940
ER  -