| article html file updated | 7 February 2020 18:33 CET | Update | https://www.mdpi.com/1996-1944/9/12/957 |
| article html file updated | 22 September 2019 06:44 CEST | Update | - |
| article html file updated | 4 May 2019 21:29 CEST | Update | - |
| article html file updated | 28 December 2016 10:31 CET | Update | - |
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| article html file updated | 27 December 2016 10:43 CET | Update | - |
| article html file updated | 24 November 2016 14:01 CET | Original file | - |
| article xml uploaded. | 24 November 2016 14:00 CET | Update | https://www.mdpi.com/1996-1944/9/12/957/xml |
| article xml uploaded. | 24 November 2016 14:00 CET | Original file | - |
| article pdf uploaded. | 24 November 2016 14:00 CET | Version of Record | https://www.mdpi.com/1996-1944/9/12/957/pdf |
