Kaczmarek, Łukasz et al. 2011. First records of Isohypsibius pushkini Tumanov, 2003 (Tardigrada, Eutardigrada, Hypsibiidae) from Poland. Biological Letters. 47, 2 (Jun. 2011), 81–85. DOI:https://doi.org/10.2478/v10120-009-0020-2.