J. L. Walsh
International Dortmund Meeting (1st 1995 Witten, Germany)
G. G. Lorentz
E. W. Cheney
Approximation Theory (International Symposium) (1969 Lancaster)
Lothar Collatz
George A. Anastassiou
Gradimir V. Milovanović
N. K. Govil
Vjačeslav V. Sazonov
Roland Zielke
Werner Krabs
Harold S. Shapiro
Theodore V. Hromadka
Robert Schaback
E. V. Voronovskai͡a
International Symposium on Approximation Theory (1977 Universidade Estadual de Campinas)
Allan Pinkus
Walter Trebels