TY  - BOOK
AU  - Bryant, Robert L.
TI  - Exterior differential systems
SN  - 0387974113
PY  - 1991///
CY  - New York
PB  - Springer-Verlag
KW  - Exterior differential systems
KW  - Differential equations, Partial
N1  - Includes bibliographical references (p. 462-470) and index
ER  -