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Publications by Rolf. Ludvigsen
Silurian Trilobites From the Northern Yukon Territory /
Upper Cambrian and Lower Ordovician Trilobite Biostratigraphy of the Rabbitkettle Formation, Western District of Mackenzie /
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The Silurian Cephalopods and Trilobites From the Yokokurayama Formation, Shikoku, Japan.
Proceedings of the Japan Academy Series B: Physical and Biological Sciences
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Population Characteristics of the Northern Interior Grizzly in the Yukon Territory, Canada
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Moulins on Kaskawulsh Glacier, Yukon Territory
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Holocene Fire History of the Southeast Yukon Territory
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New Records of Vascular Plants in the Yukon Territory VI
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A New Species of Dendragapus (Dendragapus Obscurus Flemingi) From Southern Yukon Territory