Kaczmarek, Łukasz, P. Kayastha, M. Gawlak, M. Mioduchowska, and M. Roszkowska. “An Integrative Redescription of Echiniscus Quadrispinosus Quadrispinosus Richters, 1902 (Heterotardigrada, Echiniscidae) from the Terra Typica in Taunus Mountain Range (Europe; Germany) ”. European Journal of Taxonomy, vol. 823, no. 1, June 2022, pp. 102–124, doi:10.5852/ejt.2022.823.1819.