Kristensen, R.M.; Hansen, J.G. (2005). Tardigrada (water bears), in: Rohde, K. (Ed.) Marine parasitology. pp. 230-234
In: Rohde, K. (Ed.) (2005). Marine parasitology. CSIRO Publishing (Commonwealth Scientific and Industrial Research Organization): Collingwood. ISBN 0-643-09025-8. 565 pp., meer