1 - Approximation theory. I : proceedings of an international symposium conducted by the University of Texas and the National Science Foundation at Austin, Texas, January 22-24, 1973
Lorentz, George G. (1910-2006) (Ed.)   /   Berens, Hubert (Ed).   /   Cheney, Elliott Ward (1929-....) (Ed.)   /   Schumaker, Larry L. (1939-....) (Ed.)

Cote : [49 LOR 73-1]

2 - Interpolationsmethoden zur Behandlung von Approximationsprozessen auf Banachräumen
Berens, Hubert

Cote : [49 BER 68]

3 - Semi-groups of operators and approximation
Butzer, Paul Leo (1928-....)   /   Berens, Hubert

Cote : [42.4 BUT 67]