A short survey on stable convex sets Clausing, A. — 1978 Abstracta. 6th Winter School on Abstract Analysis
Representations of semigroups and extension of invariant linear functionals. A. Clausing Semigroup forum
Generalized Dirichlet Problems and Continuous Selections of Representing Measures. A. Clausing; G. Mägerl — 1975 Mathematische Annalen
Stable Convex Sets and Extremal Operators. A. Clausing; S. Papadopoulous — 1977 Mathematische Annalen