Cesari, M., Giovannini, I., Bertolani, R. and Rebecchi, L. (2011) “An example of problems associated with DNA barcoding in tardigrades: a novel method for obtaining voucher specimens”, Zootaxa. Auckland, New Zealand, 3104(1), pp. 42–51. doi: 10.11646/zootaxa.3104.1.3.