Multivariate approximation theory : proceedings of the conference held at the Mathematical Research Institute at Oberwolfach, Black Forest, February 4-10, 1979 - International Symposium on Multivariate Approximation Theory, Oberwolfach Mathematical Research Institute, 1979.; Schempp, W. [ed.]; Zeller, Karl. (Basel ; Boston : Birkhäuser, 1979)
English or German.
Keywords: Approximation theory -- Congresses