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                    "@en": "Anderson, D. C., Tiffany, J. A., &#38; Nelson, F. W. (1986). Recent Research on Obsidian from Iowa Archaeological Sites. <i>American Antiquity</i>, <i>51</i>(4), 837–852. https://doi.org/10.2307/280870"
                },
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                },
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                    "@en": "Gregg, M. L. (1990). An Early Plains Woodland Structure in the Northeastern Plains. <i>Plains Anthropologist</i>, <i>35</i>(127), 29–44. http://www.jstor.org/stable/25668914"
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    "dc-terms:title": "13DK27 from Americas/United States/Iowa/Dickinson County",
    "dc-terms:issued": "2014-03-16",
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}