| article html file updated | 6 February 2020 08:14 CET | Update | https://www.mdpi.com/2072-4292/6/4/2864 |
| article html file updated | 7 May 2019 16:40 CEST | Update | N/A |
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| article html file updated | 14 August 2014 12:04 CEST | Update | N/A |
| article xml file uploaded | 14 August 2014 12:04 CEST | Update | https://www.mdpi.com/2072-4292/6/4/2864/xml |
| article html file updated | 20 May 2014 13:26 CEST | Original file | N/A |
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| article pdf uploaded. | 28 March 2014 09:35 CET | Version of Record | https://www.mdpi.com/2072-4292/6/4/2864/pdf |