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Giusti, F. & Manganelli, G. (2002). Redescription of two West European Oxychilus species: O. alliarius (Miller, 1822) and O. helveticus (Blum, 1881), and notes on the systematics of Oxychilus Fitzinger, 1833 (Gastropoda: Pulmonata: Zonitidae). Journal of Conchology. 37 (5): 455-476. London [May].
Giusti, F. & Manganelli, G. (2002). Redescription of two West European Oxychilus species: O. alliarius (Miller, 1822) and O. helveticus (Blum, 1881), and notes on the systematics of Oxychilus Fitzinger, 1833 (Gastropoda: Pulmonata: Zonitidae). Journal of Conchology. 37 (5): 455-476. London [May].