11![](https://www.pdfsearch.io/img/0f309c913ca74a76fca27f69cc561ece.jpg) | Add to Reading ListSource URL: www.phys.cwru.eduLanguage: English - Date: 2007-09-14 16:14:53
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12![](https://www.pdfsearch.io/img/91638fa7b10d16e5bbc4d2e5eba63a22.jpg) | Add to Reading ListSource URL: www.nasonline.orgLanguage: English - Date: 2012-08-01 15:55:42
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13![](https://www.pdfsearch.io/img/d503c580892dd16650561f1fc221c43b.jpg) | Add to Reading ListSource URL: pdfhost.focus.nps.govLanguage: English - Date: 2008-03-18 03:16:14
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14![](https://www.pdfsearch.io/img/414ed1342ddeb55bc8e257a68cb40c95.jpg) | Add to Reading ListSource URL: philsci-archive.pitt.eduLanguage: English - Date: 2010-10-07 11:18:19
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15![](https://www.pdfsearch.io/img/e23b8fd6d014c0ad556523ac4f209768.jpg) | Add to Reading ListSource URL: eprints.jcu.edu.auLanguage: English - Date: 2011-02-11 11:45:18
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16![](https://www.pdfsearch.io/img/01f8dd6738eb158e45f7b41d2871c074.jpg) | Add to Reading ListSource URL: arxiv.orgLanguage: English - Date: 2008-02-01 23:44:34
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