TY  - BOOK
AU  - Butzer P L Ed.
AU  -  Gorlich E Ed.
AU  -  Sz-Nagy B Ed.
ED  - Conference on functional analysis and approximation (1980 : Ober Wolfach)
TI  - Proceeding on functional anlaysis and approximation
T2  - International series of numerical mathematics; 60
U1  - B43p1,N80, M1 
PY  - 1981///
CY  - Basel
PB  - Birkhauser         
KW  - Functional analysis
ER  -