| article html file updated | 6 February 2020 17:30 CET | Update | https://www.mdpi.com/1420-3049/20/4/6443 |
| article html file updated | 20 September 2019 19:55 CEST | Update | - |
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| article html file updated | 21 August 2015 10:15 CEST | Update | - |
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| article xml file uploaded | 15 May 2015 09:59 CEST | Original file | https://www.mdpi.com/1420-3049/20/4/6443/xml |
| article pdf uploaded. | 10 April 2015 13:35 CEST | Version of Record | https://www.mdpi.com/1420-3049/20/4/6443/pdf |
