Representation theory of locally n -convex topological algebras Anastasios Mallios (1972) Mémoires de la Société Mathématique de France
Representing Positive Definite B-Invariant Functions on [FC]... Groups. Justin Peters (1975) Monatshefte für Mathematik
Results on Banach ideals and spaces of multipliers. Hans G. Feichtinger (1977) Mathematica Scandinavica