The search compares the search term with the contents of the category data by exact match for the catgories and partial match for the name and textual descriptions. Attention: Spaces may lead to different result, e.g. "Me 109" provides another result than "Me109". (you may combine several search terms, delimited by | )
Search results for <a href="http://www.lexikon-der-wehrmacht.de/inhaltsverzeichnismarine.htm" target="_blank">http://www.lexikon-der-wehrmacht.de/inhaltsverzeichnismarine.htm</a>
A list of used references is in More topics/Literature Information from Wikipedia is not always listed explicitly.