TY  - BOOK
AU  - Singer,Ivan.
TI  - Duality for Nonconvex Approximation and Optimization
SN  - 978-0-387-2894-4
U1  - 515.8 SIN 
PY  - 2006///
CY  - New York
PB  - Springer
KW  - Mathematics,Worst Approximation,Reverse Convex Best Approximation
ER  -