Holomorphic Approximation of Ultradifferentiable Functions. Bernd Droste — 1981 Mathematische Annalen
A new proof of the support theorem and the range characterization for the Radon transform. Bernd Droste — 1983 Manuscripta mathematica
Beitrag zum Divisionsproblem für Ultradistributionen und ein Fortsetzungsansatz. Bernd Droste — 1979 Manuscripta mathematica
Extension of Analytic Functional Calculus Mappings and Duality by ...-Closed Forms with Growth. Bernd Droste — 1982 Mathematische Annalen