11 | Add to Reading ListSource URL: www2.edc.orgLanguage: English - Date: 2003-04-15 07:49:24
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12 | Add to Reading ListSource URL: www.is.informatik.uni-duisburg.deLanguage: English - Date: 2007-06-22 05:33:41
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13 | Add to Reading ListSource URL: www.cde.ca.govLanguage: English - Date: 2017-10-16 11:37:06
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14 | Add to Reading ListSource URL: www.ngda.orgLanguage: English - Date: 2009-12-18 18:55:35
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15 | Add to Reading ListSource URL: www.dlorg.euLanguage: English - Date: 2011-04-16 12:04:02
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16 | Add to Reading ListSource URL: oa2020.orgLanguage: English - Date: 2017-10-08 12:21:46
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17 | Add to Reading ListSource URL: esac-initiative.orgLanguage: English - Date: 2016-05-20 07:20:38
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18 | Add to Reading ListSource URL: hauster.deLanguage: German - Date: 2018-02-26 09:34:21
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19 | Add to Reading ListSource URL: dl.ndl.go.jpLanguage: English - Date: 2018-07-24 20:42:27
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20 | Add to Reading ListSource URL: library.wrds.uwyo.eduLanguage: English - Date: 2018-05-31 15:08:11
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