TY  - BOOK
AU  - Agarwal Ravi P
TI  - Focal boundary value problems for differential and difference equations
SN  - 0-7923-4978-4
U1  - 515.35 
PY  - 1998///
CY  - Dordrecht
PB  - Kluwer Academic
KW  - Boundary value problems
KW  - Differential equations
ER  -