Functional analysis and approximation :  proceedings of the conference held at the Mathematical Research Institute at Oberwolfach, Black Forest, August 9-16, 1980 / 
edited by P. L. Butzer, B. Sz.-Nagy, E. Gorlich 
 - Basel :  Birkhauser Verlag,  1981 
 - 482 p. ;  24 cm. 
 - International series of numerical mathematics ;  v. 60 .
<br/><br/><label>ISBN: </label>3764312122 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Functional analysis<br/>Approximation theory