TY  - BOOK
AU  - Shishkin, Grigory I.
AU  - Shishkina, Lidia P.
TI  - Difference methods for singular perturbation problems
SN  - 9781584884590
U1  - 515.392 
PY  - 2009///
CY  - Boca Raton
PB  - Crc Press
KW  - Singular perturbations (Mathematics)
ER  -