TY  - BOOK
AU  - Ovsiannikov,L.V.
TI  - Group analysis of differential equations
PY  - 1982///
CY  - New York: 
PB  - Academic Press, 
KW  - INIST
KW  - PARTIAL DIFFERENTIAL EQUATIONS
KW  - BOUNDARY LAYERS
KW  - PRINCIPIOS DE INVARIANZA
KW  - ALGEBRA DE LIE
ER  -