Linear operators and approximation : proceedings of the conference held at the Oberwolfach Mathematical Research Institute, Black Forest, August 14-22, 1971 = Lineare Operatoren und Approximation : Abhandlungen
edited by P.L.Butzer, J.-P.Kahane and B. Szökefalvi-Nagy
Bok Engelsk 1972
Flere språk: Tysk, Russisk