Wesener, T., and C. Sagorny. “Seven New Giant Pill-Millipede Species and Numerous New Records of the Genus Zoosphaerium from Madagascar (Diplopoda, Sphaerotheriida, Arthrosphaeridae)”. European Journal of Taxonomy, vol. 758, no. 1, July 2021, pp. 1-48, doi:10.5852/ejt.2021.758.1423.