| article html file updated | 5 February 2020 14:25 CET | Update | https://www.mdpi.com/1660-4601/7/5/2191 |
| article html file updated | 9 May 2019 06:35 CEST | Update | - |
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| article xml file uploaded | 14 August 2014 11:42 CEST | Update | https://www.mdpi.com/1660-4601/7/5/2191/xml |
| article html file updated | 14 August 2014 11:21 CEST | Update | - |
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| article html file updated | 18 January 2013 06:08 CET | Original file | - |