TY  - BOOK
AU  - Schouten,J.A.
AU  - Kulk,W.van der
TI  - Pfaff's problem and its generalizations
U1  - 516.36 23
PY  - 1949///
CY  - Oxford
PB  - Clarendon Press
KW  - Pfaff's problem
N1  - Includes bibliography & index: p. [534]-536
ER  -