| article html file updated | 6 February 2020 17:37 CET | Update | https://www.mdpi.com/1420-3049/20/4/6640 |
| article html file updated | 20 September 2019 20:03 CEST | Update | - |
| article html file updated | 6 May 2019 22:02 CEST | Update | - |
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| article html file updated | 17 September 2018 09:20 CEST | Update | - |
| article html file updated | 21 August 2015 10:23 CEST | Update | - |
| article html file updated | 15 May 2015 09:59 CEST | Original file | - |
| article xml file uploaded | 15 May 2015 09:59 CEST | Original file | https://www.mdpi.com/1420-3049/20/4/6640/xml |
| article pdf uploaded. | 14 April 2015 13:54 CEST | Version of Record | https://www.mdpi.com/1420-3049/20/4/6640/pdf |
