Ockelmann, W.K. (1954). On the interrelationship and the zoogeography of northern species of Yoldia Möller, s. str. (Mollusca, fam. Ledidae) with a new subspecies. Meddelelser om Grønland. 107:1–32.
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Ockelmann, W.K.
1954
On the interrelationship and the zoogeography of northern species of Yoldia Möller, s. str. (Mollusca, fam. Ledidae) with a new subspecies
