Pfingstl, T., S. Schäffer, E. Ebermann, and G. Krisper. “Intraspecific Morphological Variation of Scutovertex sculptus Michael (Acari: Oribatida: Scutoverticidae) and Description of Its Juvenile Stages”. Zootaxa, vol. 1829, no. 1, July 2008, pp. 31–51, doi:10.11646/zootaxa.1829.1.2.