Media type: E-Article Title: The Rhine-Main District Contributor: Jordan, Horst imprint: SAGE Publications, 1964 Published in: Proceedings of the Institution of Mechanical Engineers Language: English DOI: 10.1243/pime_proc_1964_179_071_02 ISSN: 0020-3483; 2058-1203 Keywords: General Engineering Origination: Footnote: