D’haese, C. A. and Thibaud, J.-M. (2011) “Description and phylogenetic position of a new Willemia species(Collembola: Hypogastruridae) from the littoral coast of Brazil”, Zootaxa. Auckland, New Zealand, 2932(1), pp. 33–40. doi: 10.11646/zootaxa.2932.1.3.