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].