TY  - BOOK
AU  - Ibragimov, N.H. etal, ed.
AU  - Aksenov, A.V., ed.
AU  - Baikov, V.A., ed.
TI  - CRC handbook of lie group analysis of differential equations.V.2
SN  - 0849328640
U1  - 515.35 
PY  - 1995///
CY  - Boca Raton
PB  - CRC press
ER  -