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Ashrafi, S.; Bontadina, F.; Kiefer, A.; Pavlinic, I.; Arlettaz, Raphaël (2010). Multiple morphological characters needed for field identification of cryptic long-eared bat species around the Swiss Alps. Journal of zoology, 281(4), pp. 241-248. Oxford: Wiley-Blackwell 10.1111/j.1469-7998.2010.00697.x
