Media type: Article Title: Dr.-Ing. E.h. Johann M. Lorenzen : [gest.] Contributor: Vogel, G. [Author] imprint: 1973 Published in: Bautechnik ; 50(1973), 1, Seite 33-34 Language: German ISSN: 0932-8351 Keywords: Lorenzen, Johann M. Origination: Footnote: