Rost-Roszkowska, Magdalena M., et al. “The Fine Structure of the Midgut Epithelium in Xerobiotus Pseudohufelandi (Iharos, 1966) (Tardigrada, Eutardigrada, Macrobiotidae)”. Journal of Limnology, vol. 72, no. s1, Apr. 2013, p. e7, doi:10.4081/jlimnol.2013.s1.e7.