TY  - BOOK
AU  - 
AU  - 
TI  - course of higher mathematics
U1  - 517.9 
PY  - 0000///
CY  - Oxford
PB  - 
KW  - Differential equqtions
KW  - Partial differential equations
KW  - Functional equations
N1  -  V.4 differential equations and partial differntial equations
ER  -