TY  - BOOK
AU  - Olver, Peter J
AU  - Axler, S
TI  - Application of lie groups to differential equations
SN  - 0387950001
U1  - 512.8:517.9 
PY  - 1993///
CY  - New York
PB  - Springer
KW  - DIFFERENTIAL EQUATION
KW  - LIE GROUPS
ER  -