Present problems of position finding and navigation in the space in the air and at sea
Subtitle: papers of the international congress vom 28.-30. Oktober 1969 in Hamburg.
Contributors: Deutsche Gesellschaft für Ortung und Navigation.
Series: Bücherei der Ortung und Navigation
Publisher: Deutsche Gesellschaft für Ortung und Navigation; privately printed
Published: 1970
Place of publication: Düsseldorf
Language: eng
Subjects: Navigation -- Congresses.; Aids to navigation -- Congresses.
Notes: Includes bibliographical references.