TY  - BOOK
AU  - Bellman Richard Ernest
AU  - Roth Robert S
TI  - Methods in approximation: techniques for mathematical modelling
SN  - 90-277-2188-2
U1  - 511.4 
PY  - 1986///
CY  - Dordrecht
PB  - D Reidel Pub
KW  - Approximation theory
ER  -