TY  - BOOK
AU  - Gonchar,A.A.
AU  - Saff,E.B.
TI  - Progress in approximation theory: an international perspective 
SN  - 0387979018
PY  - 1992///
CY  - New York
PB  - Springer-Verlag
KW  - Approximation theory
KW  - Congresses
ER  -