Fontoura, P., Bartels, P. J., Jørgensen, A., Kristensen, R. M. and Hansen, J. G. (2017) “A dichotomous key to the genera of the Marine Heterotardigrades (Tardigrada)”, Zootaxa. Auckland, New Zealand, 4294(1), pp. 1–45. doi: 10.11646/zootaxa.4294.1.1.