TY  - BOOK
AU  - Butzer P L ed.
ED  - Conference on Linear Operators and Approximation( 1st : 1971 : Black Forest )
ED  - Conference on Linear Operators and Approximation 1st
TI  - Linear operators and approximation: proceedings
U1  - 515.7246 
PY  - 1972///
CY  - Basel
PB  - Birkhauser Verlag
KW  - Calculus
KW  - Linear operator
ER  -