TY  - GEN
AU  - Khavinson,S.I͡A
TI  - Best approximation by linear superpositions (approximate nomography)
SN  - 0821804227 (alk. paper)
AV  - QA221 
U1  - 511.4 
PY  - 1997///
CY  - Providence, R.I.
PB  - American Mathematical Society
KW  - Approximation theory
KW  - Functions of several real variables
KW  - Functional analysis
N1  - bibliografie p.169
ER  -