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Geoscience Wisconsin Volume 14
Ordovician-Silurian boundary of the Neda Formation-
Ferruginous and Calcareous Oolites at the Ordovician-Silurian Boundary in Illinois
1991
Journal: p. 1-21
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Paleomagnetic Studies of Rock at the Ordovician-Silurian Boundary in Wisconsin
1991
Journal: p. 53-63