TY  - BOOK
AU  - Pommaret,J.F.
TI  - Systems of partial differential equations and Lie pseudogroups
SN  - 067700270X
PY  - 1978///
CY  - New York
PB  - Gordon and Breach Science Publishers
KW  - Differential equations, Partial
KW  - Lie groups
KW  - Pseudogroups
N1  - Includes index; Bibliography: p. 405-407
ER  -