"Imprint." Federal Bureau for Maritime Casualty Investigation. Retrieved on 16 January 2012. "Bundesstelle für Seeunfalluntersuchung (BSU) Bernhard-Nocht-Strasse 78 20359 Hamburg " - Map
"HomepageArchived 2011-12-21 at the Wayback Machine." Federal Bureau for Maritime Casualty Investigation. Retrieved on 16 January 2012.
web.archive.org
"HomepageArchived 2011-12-21 at the Wayback Machine." Federal Bureau for Maritime Casualty Investigation. Retrieved on 16 January 2012.
"Imprint." Federal Bureau for Maritime Casualty Investigation. Retrieved on 16 January 2012. "Bundesstelle für Seeunfalluntersuchung (BSU) Bernhard-Nocht-Strasse 78 20359 Hamburg " - Map