Deutsche Gesellschaft für Ortung und Navigation (DGON) Kölnstraße 70, 53111 BONN, Germany Tel. +49 228 20197.0 – Fax +49 228 20197.19 Web site: https://www.dgon.de/ Formed in 1951 in Düsseldorf. Registered non-profit making association. President: Prof. Carlos JAHN Director: Dipl.-Ing. Galina LANGE DGON participates in the European Journal of Navigation. Institut Français de Navigation […]