Reutlingen University, (officially called Fachhochschule für Technik und Wirtschaft Reutlingen until 2002)
Sielaff is a member of the Advisory Board of the School of Textiles & Design at Reutlingen University.
Wilhelm F. Gugel completed an apprenticeship in a technical profession studied mechanical engineering at the Technikum in Reutlingen and later architecture at the Staatsbauschule in Stuttgart.
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