Wesener, T. (2016).

Redescription and phylogenetic analysis of the type species of the giant pill-millipede genus Sphaeropoeus Brandt, 1833 (Diplopoda, Sphaerotheriida, Zephroniidae)

. Zootaxa, 4184(1), 141–157. https://doi.org/10.11646/zootaxa.4184.1.9