M.Sc Alexander Sieger (born Taube) passed his doctoral examination on 04.12.2020 as part of his dissertation "Microstructure characteristics of additively manufactured lattice structures" with "distinction". Members of the doctoral committee were Prof. Dr.-Ing. habil. M. Schaper, Prof. Dr. T. Niendorf, Prof. Dr.-Ing. W. Homberg and Prof. Dr.-Ing.