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1by Sarkar, Sula, Kelly Hall, PatriciaGet access
Published in Historical Methods: A Journal of Quantitative and Interdisciplinary History (2011)
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2
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3by Ruggles, Steven, Roberts, Evan, Sarkar, Sula, Sobek, MatthewGet access
Published in Historical Methods: A Journal of Quantitative and Interdisciplinary History (2011)
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Article in Journal/Newspaper