Search for: [References = "27. Niewiarowski W., 1987, Evolution of the lower Vistula valley in the Unisław Basin and the river gap to the North of Bydgoszcz Fordon, \[w\:\] L. Starkel \(red.\) Evolution of the Vistula river valley during the last 15 000 years, Geographical Studies, Special Issue, 4, s. 234\-252."]

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