Category:Amphipoda – Wikimedia Commons

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

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https://portal.dnb.de/opac.htm;jsessionid=468F066A37BA115FF439D882365A1864.prod-worker0?query=otto+altenburger&method=simpleSear

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https://portal.dnb.de/opac.htm;jsessionid=468F066A37BA115FF439D882365A1864.prod-worker0?query=otto+altenburger&method=simpleSearch

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Encyclopedia of Tidepools and Rocky Shores - Google Books

http://books.google.de/books?id=uufQnE7MzMkC

"This is the book I have been waiting for! Written by experts in each field, this encyclopedia provides a wealth of information not only about the tidepool and shore life but also the oceanography associated with these habitats. This will be a major…

GVK - Gemeinsamer Verbundkatalog - 2.1

http://gso.gbv.de/DB=2.1/PPNSET?PPN=72298295X

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Deep Sea Images Stock Library - All Images - Natural History Images

http://www.deepseaimages.com/dsilibrary/showgallery.php?cat=all&si=elysiidae

Deep Sea Images is a professional underwater and natural history photo and image stock library featuring marine related images and other imags from around the world