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    Surveying instruments, Walter de Gruyter, p. 18, ISBN 3-11-007765-5 Heribert Kahmen, Wolfgang Faig (1988), Surveying, Walter de Gruyter, pp. 112–116, ISBN 3-11-008303-5...
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    France the word centigrade has customarily been applied to angles. Kahmen, Heribert; Faig, Wolfgang (2012). Surveying. De Gruyter. ISBN 9783110845716....
    21 KB (1,789 words) - 05:10, 24 October 2024
  • Archived from the original (PDF) on 2016-01-26. Retrieved 2016-01-09. Kahmen, Heribert (2006). Angewandte Geodaesie – Vermessungskunde – (in German). Walter...
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    Telegraph. London: Imperial College Press. ISBN 978-1-78326-917-4. Kahmen, Heribert; Faig, Wolfgang (1988). Surveying. Berlin: de Gruyter. p. 9. ISBN 3-11-008303-5...
    57 KB (7,269 words) - 12:56, 2 November 2024
  • 2016 ABCLS Webpage. "Board of Management." Accessed May 30, 2016 Kahmen, Heribert; Faig, Wolfgang. Surveying. Berlin: de Gruyter. 1998. ISBN 3-11-008303-5...
    23 KB (2,804 words) - 16:05, 8 January 2024