| article html file updated | 5 February 2020 16:03 CET | Update | https://www.mdpi.com/1660-4601/7/12/4169 |
| article html file updated | 19 September 2019 02:08 CEST | Update | N/A |
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| article xml file uploaded | 14 August 2014 11:42 CEST | Update | https://www.mdpi.com/1660-4601/7/12/4169/xml |
| article html file updated | 14 August 2014 11:22 CEST | Update | N/A |
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| article html file updated | 6 February 2013 19:07 CET | Update | N/A |
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| article html file updated | 28 January 2013 20:33 CET | Update | N/A |
| article html file updated | 26 January 2013 00:06 CET | Update | N/A |
| article html file updated | 22 January 2013 06:42 CET | Original file | N/A |
