TY  - BOOK
AU  - Khavinson,S.Ya
TI  - Best approximation by linear superpositions (approximate nomography)
T2  - Translations of mathematical monographs 159
SN  - 9780821804223 
U1  - 5.08 
PY  - 1997///
CY  - Providence
PB  - American Mathematical Society
ER  -