51![](https://www.pdfsearch.io/img/f3ea66554b6cade2d3a0e0df8462f581.jpg) | Add to Reading ListSource URL: www.uni-koeln.deLanguage: English - Date: 2000-12-31 09:46:19
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52![](https://www.pdfsearch.io/img/e5651f0d49a5c275d4720d145181c609.jpg) | Add to Reading ListSource URL: www.achemenet.comLanguage: English - Date: 2007-11-26 04:16:20
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53![](https://www.pdfsearch.io/img/9d5363c522445fa2410f0467a306f3b8.jpg) | Add to Reading ListSource URL: std.dkuug.dkLanguage: English - Date: 2006-02-06 17:17:56
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54![](https://www.pdfsearch.io/img/de0c99fd4de5a20dfb2cfb69ec6ec1f8.jpg) | Add to Reading ListSource URL: www.csarmento.uminho.ptLanguage: English - Date: 2004-01-18 05:45:27
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55![](https://www.pdfsearch.io/img/ac26464650f226e4d86942486202dc6a.jpg) | Add to Reading ListSource URL: ervinaydin.comLanguage: English - Date: 2013-06-26 19:19:38
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56![Untitled Untitled](https://www.pdfsearch.io/img/53a1f5c85e3ce771430ea9789991e0af.jpg) | Add to Reading ListSource URL: 98.131.162.170Language: English - Date: 2008-11-20 13:22:27
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57![](https://www.pdfsearch.io/img/c4cc97428d33c1b8e057a411d26de1ce.jpg) | Add to Reading ListSource URL: histsoc.stanford.eduLanguage: English - Date: 2003-11-13 15:07:19
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