Can someone help me with this article: Proschwitz, T. von 2004. On the distribution and ecology of Vertigo substriata (Jeffreys), Vertigo modesta arctica (Wallenberg), Vertigo lilljeborgi (Westerlund) and Vertigo alpestris Alder in France and on the Iberia Peninsula. - Journal of Conchology 38 (4): 411-420. Thanks, Hans Henderickx