Mathias Neubauer, Thomas A. Neubauer: Opole (Poland) - a ley locality for middle Miocene terrestrial mollusc faunas. Bulletin of Geosciences 93(1): 71–146, 2018 doi:10.3140/bull.geosci.1692
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Igor Balashov, Nina Gural-Sverlova: An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology, 41(1): 91-109, 2012 PDF (773 kB)
