Kristensen, R.M. (1987). Generic revision of the Echiniscidae (Heterotardigrada), with a discussion of the origin of the family, pp. 261–335 in: Bertolani, R. (Ed.), Biology of tardigrades: Proceedings of the 4th International Symposium on the Tardigrada, Modena, September 3-5, 1985. Selected Symposia and Monographs. 1. Mucci, Modena. 380 pp. ISBN 88-7000-108-3.
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Kristensen, R.M.
1987
Generic revision of the Echiniscidae (Heterotardigrada), with a discussion of the origin of the family, pp. 261–335 in: Bertolani, R. (Ed.), Biology of tardigrades: Proceedings of the 4th International Symposium on the Tardigrada, Modena, September 3-5, 1985