TY  - BOOK
AU  - Ibragomov, Nail H.
TI  - Elementary Lie Group Analysis and Ordinary Differential Equations
SN  - 0471974307
U1  - 515.352 
PY  - 1999///
CY  - New york
PB  - John wiley &  Sons
KW  - integration
KW  - Algebra
KW  -  Differential Equations
ER  -