TY  - DATA
AU  - Thomas, Joseph Miller,
TI  - Differential systems 
T2  - Colloquium Publications, 
SN  - 9781470431693 (online)
PY  - 1937///
CY  - New York, N.Y.
PB  - American Mathematical Society
KW  - Differential equations, Partial
KW  - Pfaffian problem
N1  - Bibliography: p. 114
UR  - https://doi.org/http://dx.doi.org/10.1090/coll/021
ER  -