TY  - BOOK
AU  - Olver ,Peter.J.
TI  - Applications of Lie groups to differential Equations: Graduate Texts in Mathematics 
SN  - 0387950001
U1  - 515.35 
PY  - 2000///
CY  - USA
PB  - Springer
KW  - Differentiation
KW  - equations
KW  - Algebra
ER  -