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5
by Ruggles, Tim
Published in JOM (2016)
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6
by Ruggles, Steven
Published in Demography (2015)
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7
by Ruggles, Steven
Published in Demography (2014)
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8
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10
by Ruggles, Clive
Published in New Scientist (2009)
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by Ruggles, Tammy
Published in Weatherwise (2006)
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19
by Ruggles, Tammy
Published in Weatherwise (2002)
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20
by Ruggles, Steven
Published in History and Computing (2002)
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