| article html file updated | 5 February 2020 22:02 CET | Update | https://www.mdpi.com/2072-4292/4/9/2768 |
| article html file updated | 8 May 2019 14:39 CEST | Update | - |
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| article html file updated | 17 June 2015 02:24 CEST | Update | - |
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| article xml file uploaded | 14 August 2014 12:05 CEST | Update | https://www.mdpi.com/2072-4292/4/9/2768/xml |
| article html file updated | 7 February 2013 15:06 CET | Update | - |
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| article html file updated | 24 January 2013 02:22 CET | Update | - |
| article html file updated | 16 January 2013 14:45 CET | Original file | - |
| article xml file uploaded | 16 January 2013 14:44 CET | Original file | - |