https://portal.dnb.de/opac.htm?method=simpleSearch&cqlMode=true&query=idn%3D941401170

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Bestimmungshilfe des Lepiforums: Glyphipterigidae

http://www.lepiforum.de/cgi-bin/lepiwiki.pl?Glyphipterigidae

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AHS Publications

https://web.archive.org/web/20091116080558/http://www.ahsoc.demon.co.uk/pubs.html

The Antiquarian Horological Society (AHS), is a learned Society dedicated to the study of antiquarian clocks, watches and other forms of timekeeping.

Category:Campsites – Wikimedia Commons

https://commons.wikimedia.org/wiki/Category:Campsites?uselang=de

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„Liste der schwersten Unfälle der Luftfahrt“ – Versionsunterschied – Wikipedia

https://secure.wikimedia.org/wikipedia/de/w/index.php?title=Liste_von_Katastrophen_der_Luftfahrt&curid=47558&diff=101086338&oldi

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AHS Publications

http://wayback.archive.org/web/20120613222901/http://www.ahsoc.demon.co.uk/pubs.html#vulliamy

The Antiquarian Horological Society (AHS), is a learned Society dedicated to the study of antiquarian clocks, watches and other forms of timekeeping.