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Articles by Richard S. Ehrlich in 2012
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04 December 2012
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30 November 2012
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26 November 2012
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19 November 2012
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01 November 2012
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17 October 2012
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28 September 2012
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10 September 2012
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17 August 2012
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10 August 2012
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22 July 2012
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12 July 2012
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29 June 2012
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02 June 2012
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23 May 2012
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30 April 2012
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19 April 2012
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30 March 2012
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11 March 2012
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26 February 2012
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24 February 2012
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20 February 2012
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15 February 2012
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07 February 2012
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28 January 2012
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23 January 2012
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21 January 2012
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18 January 2012
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16 January 2012