| article html file updated | 6 February 2020 07:19 CET | Update | https://www.mdpi.com/2072-4292/6/2/1496 |
| article html file updated | 7 May 2019 18:31 CEST | Update | - |
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| article html file updated | 14 August 2014 12:04 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:04 CEST | Update | https://www.mdpi.com/2072-4292/6/2/1496/xml |
| article html file updated | 20 March 2014 10:25 CET | Original file | - |
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| article pdf uploaded. | 19 February 2014 10:00 CET | Version of Record | https://www.mdpi.com/2072-4292/6/2/1496/pdf |