TY  - BOOK
AU  - Blumen, George W. and Kumei, Sukeyuki
AU  - Kumei, Sukeyuki ; jt. auth.
TI  - Symmetries and differential equations
T2  - Applied Mathematical Sciences 
U1  - 515.35 
PY  - 1989///
CY  - New York
PB  - Springer-Verlag
ER  -