TY  - BOOK
AU  - Schouten,Jan Arnoldus
AU  - Kulk,Wouter van der
TI  - Pfaff's problem and its generalizations
AV  - QA381 .S38
U1  - 517.38 
PY  - 1949///
CY  - Oxford: 
PB  - Clarendon Press, 
KW  - PFAFF´S PROBLEMS
KW  - INIST
KW  - PARTIAL DIFFERENTIAL EQUATIONS
KW  - CAMPOS VECTORIALES
KW  - Prolemas de Pfaff
ER  -