Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
„Ew. Kaiserlichen und Königlichen Majestät allerunterthänigster Diener “: Briefe Georg Ernst Hinzpeters an Kaiser Wilhelm II. aus den Jahren 1897-1906.
Technology and employment: Innovation and growth in the US economy: Richard M. Cyert and David C. Mowery, Editors Panel on Technology and Employment, Committee on Science, Engineering and Public Policy, Washington, DC, National Academy Press, 1987, 225 pages, IBSN 0-309-03744-1.