51 | Add to Reading ListSource URL: www.acs.orgLanguage: English - Date: 2013-11-12 14:40:01
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52 | Add to Reading ListSource URL: www.nist.govLanguage: English - Date: 2011-03-16 08:22:00
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53 | Add to Reading ListSource URL: www.wmkeck.orgLanguage: English - Date: 2014-04-01 17:59:25
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54 | Add to Reading ListSource URL: sustainableproduction.orgLanguage: English - Date: 2014-04-01 23:08:54
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55 | Add to Reading ListSource URL: www.seas.virginia.eduLanguage: English - Date: 2013-07-22 11:55:02
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56 | Add to Reading ListSource URL: www.nano.sc.eduLanguage: English - Date: 2010-01-08 15:30:48
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57 | Add to Reading ListSource URL: english.cas.cnLanguage: English - Date: 2014-05-15 05:08:36
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58 | Add to Reading ListSource URL: technologygateway.nasa.govLanguage: English - Date: 2014-01-30 09:50:54
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59 | Add to Reading ListSource URL: sites01.lsu.eduLanguage: English - Date: 2014-07-25 10:53:04
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60 | Add to Reading ListSource URL: www.dwm.pwr.edu.plLanguage: English - Date: 2014-01-23 09:31:16
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