Gloeer & Zettler 2007. [Pseudamnicola beckmanni n. sp. and Pseudamnicola granjaensis n. sp., two new species from the Balearics (Gastropoda: Hydrobiidae).] Beckmann, Karl-Heinz[The land- and freshwater molluscs of the Balearic Islands.], ConchBooks, Hackenheim, 2007: 1-255. Chapter pagination: 171-174