Literatur zur Systematik der Schnecken
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G.: The Heterobranchia - a new concept of the phylogeny of the higher
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G.: On the origin and Evolution of major Gastropod groups, with special
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H.: Phylogeny and system of the Pulmonata (Gastropoda). Arch.
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G.M.: Gastropods on Land: Phylogeny, Diversity and Adaptive Morphology. In:
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