| article html file updated | 5 February 2020 21:08 CET | Update | https://www.mdpi.com/2072-4292/4/7/2133 |
| article html file updated | 8 May 2019 16:33 CEST | Update | - |
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| article xml file uploaded | 14 August 2014 12:05 CEST | Original file | https://www.mdpi.com/2072-4292/4/7/2133/xml |
| article html file updated | 7 February 2013 13:29 CET | Update | - |
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| article html file updated | 23 January 2013 21:47 CET | Original file | - |