TY  - BOOK
AU  - Grobner, W. 
AU  - Knapp, H.
TI  - Contributions to the method of lie series
PY  - 1967///
CY  - Mannheim
PB  - Bibliographisches Institute         
KW  - Differential equations, Elliptic
KW  - Equations differentials non Linearis
KW  - Mathematics
N1  - Bibliography :P.255-259
ER  -