| article html file updated | 5 February 2020 19:28 CET | Update | https://www.mdpi.com/2072-4292/4/2/509 |
| article html file updated | 8 May 2019 20:15 CEST | Update | N/A |
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| article xml file uploaded | 14 August 2014 12:04 CEST | Original file | https://www.mdpi.com/2072-4292/4/2/509/xml |
| article html file updated | 7 February 2013 10:35 CET | Update | N/A |
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| article html file updated | 23 January 2013 10:23 CET | Original file | N/A |