Paul Leo Butzer

发表

On approximation theory : proceedings of the conference held in the Mathematical Research Institute at Oberwolfach, Black Forest, August 4-10,1963

Paul Leo Butzer, Jacob Korevaar, 1964 .

Approximation und Interpolation durch verallgemeinerte Abtastsummen

Paul Leo Butzer, Wolfgang Splettstösser, 1977 .