| article html file updated | 7 February 2020 09:24 CET | Update | https://www.mdpi.com/1996-1944/9/6/417 |
| article html file updated | 5 May 2019 14:25 CEST | Update | - |
| article html file updated | 27 March 2019 06:00 CET | Update | - |
| article html file updated | 28 June 2016 12:07 CEST | Update | - |
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| article html file updated | 27 May 2016 23:45 CEST | Update | - |
| article html file updated | 27 May 2016 13:41 CEST | Original file | - |
| article xml uploaded. | 27 May 2016 13:39 CEST | Update | https://www.mdpi.com/1996-1944/9/6/417/xml |
| article pdf uploaded. | 27 May 2016 13:39 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/6/417/pdf |
