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Libellen von Tonkin
Published in Wiener Entomologische Zeitung, in 1905, in volume 24, pages 19-24
Created: 2011-06-03, modified: 2011-06-21
Neue Aeschniden
Published in Annales de la Société entomologique de Belgique, in 1908, in volume 52, pages 213-218
Created: 2012-03-30, modified: 2012-03-30