11 | Add to Reading ListSource URL: www.sciencemag.orgLanguage: English - Date: 2012-08-15 14:46:03
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12 | Add to Reading ListSource URL: mceer.buffalo.eduLanguage: English - Date: 2006-11-17 15:30:53
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13 | Add to Reading ListSource URL: gao.govLanguage: English - Date: 2006-10-23 10:00:20
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14 | Add to Reading ListSource URL: www.gao.govLanguage: English - Date: 2009-05-04 12:19:47
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15 | Add to Reading ListSource URL: gao.govLanguage: English - Date: 2007-10-10 12:01:33
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16 | Add to Reading ListSource URL: www.gao.govLanguage: English - Date: 2011-09-29 19:24:58
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17 | Add to Reading ListSource URL: www.wku.eduLanguage: English - Date: 2014-02-01 20:18:03
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18 | Add to Reading ListSource URL: www.gao.govLanguage: English - Date: 2011-09-29 12:21:52
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19 | Add to Reading ListSource URL: www.gao.govLanguage: English - Date: 2006-10-23 10:00:20
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20 | Add to Reading ListSource URL: www.gao.govLanguage: English - Date: 2007-10-10 12:01:33
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