TY  - BOOK
AU  - Schouten, J. A. 
AU  - Kulk, W. v. d.
TI  - Pfaff's problem and its generalizations
U1  - 516.36 23
PY  - 1949///
CY  - Oxford
PB  - At the Clarendon Press
KW  -  Pfaffian problem
N1  - Includes bibliography and index
ER  -